Cannot create LDAP with specific settings

I just went to create LDAP and noticed that when configuring "User and Group", I could not save with Group Type being Dynamic or without mapping LDAP groups as roles. There was a validation firing that (if reading correctly) Group Member Format (a variable under Static Group configuration) was required. See attached and log snip below.
I was able to change to Static Group configuration and create my LDAP.

If you then go back and edit, you can make it dynamic group configuration or remove mapping LDAP groups as roles altogether, but you cannot remove the value from that field. If you do, it restores it to what you did before you saved.

This occurs with ?Debug on and off.

Editing post-creating is a pretty poor workaround and also 3 of our templates use dynamic groups so appear not to work with this as is, so leaving major.

This worked in some builds of m4, so is at least semi-recent regression. I did not go back and check pre-Edgy so am not sure how recent. I also didn't check against NX2, tho this was working last time I attempted it, assuming NX3 specific.
I don't believe this has anything to do with the linked issue, however, linking for thoroughness.

2015-07-03 10:57:50,101-0400 ERROR [qtp845392291-218] admin org.sonatype.nexus.extdirect.internal.ExtDirectServlet - Failed to invoke action method: ldap_LdapServer.create, java-method: org.sonatype.nexus.ldap.internal.ui.LdapServerComponent.create
com.orientechnologies.orient.core.exception.OValidationException: The field 'ldap_mapping.groupMemberFormat' cannot be null, record: ldap_mapping

Unknown macro: {emailAddressAttribute}

at com.orientechnologies.orient.core.record.impl.ODocument.validateField(ODocument.java:251) [na:na]
at com.orientechnologies.orient.core.record.impl.ODocument.validate(ODocument.java:1932) [na:na]
at com.orientechnologies.orient.core.record.impl.ODocument.validateEmbedded(ODocument.java:489) [na:na]
at com.orientechnologies.orient.core.record.impl.ODocument.validateField(ODocument.java:302) [na:na]
at com.orientechnologies.orient.core.record.impl.ODocument.validate(ODocument.java:1932) [na:na]
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.commit(OAbstractPaginatedStorage.java:947) [na:na]
at com.orientechnologies.orient.core.tx.OTransactionOptimistic.doCommit(OTransactionOptimistic.java:590) [na:na]
at com.orientechnologies.orient.core.tx.OTransactionOptimistic.commit(OTransactionOptimistic.java:145) [na:na]
at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2548) [na:na]
at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2517) [na:na]
at org.sonatype.nexus.ldap.internal.persist.orient.OrientDBLdapConfigurationSource.create(OrientDBLdapConfigurationSource.java:105) [na:na]
at org.sonatype.nexus.ldap.internal.persist.DefaultLdapConfigurationManager.addLdapServerConfiguration(DefaultLdapConfigurationManager.java:133) [na:na]
at org.sonatype.nexus.ldap.internal.persist.LdapConfigurationManager$addLdapServerConfiguration$0.call(Unknown Source) [na:na]
at org.sonatype.nexus.ldap.internal.ui.LdapServerComponent.create(LdapServerComponent.groovy:121) [na:na]
at org.sonatype.nexus.validation.internal.ValidationInterceptor.invoke(ValidationInterceptor.java:53) [na:na]
at org.apache.shiro.guice.aop.AopAllianceMethodInvocationAdapter.proceed(AopAllianceMethodInvocationAdapter.java:49) [na:na]
at org.apache.shiro.authz.aop.AuthorizingAnnotationMethodInterceptor.invoke(AuthorizingAnnotationMethodInterceptor.java:68) [na:na]
at org.apache.shiro.guice.aop.AopAllianceMethodInterceptorAdapter.invoke(AopAllianceMethodInterceptorAdapter.java:36) [na:na]
at org.apache.shiro.guice.aop.AopAllianceMethodInvocationAdapter.proceed(AopAllianceMethodInvocationAdapter.java:49) [na:na]
at org.apache.shiro.authz.aop.AuthorizingAnnotationMethodInterceptor.invoke(AuthorizingAnnotationMethodInterceptor.java:68) [na:na]
at org.apache.shiro.guice.aop.AopAllianceMethodInterceptorAdapter.invoke(AopAllianceMethodInterceptorAdapter.java:36) [na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [na:1.8.0_40]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [na:1.8.0_40]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [na:1.8.0_40]
at java.lang.reflect.Method.invoke(Method.java:497) [na:1.8.0_40]
at com.softwarementors.extjs.djn.router.dispatcher.DispatcherBase.invokeJavaMethod(DispatcherBase.java:142) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.router.dispatcher.DispatcherBase.invokeMethod(DispatcherBase.java:133) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at org.sonatype.nexus.extdirect.internal.ExtDirectServlet$3.invokeMethod(ExtDirectServlet.java:201) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.router.dispatcher.DispatcherBase.dispatch(DispatcherBase.java:63) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.router.processor.standard.StandardRequestProcessorBase.dispatchStandardMethod(StandardRequestProcessorBase.java:73) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.router.processor.standard.json.JsonRequestProcessor.processIndividualRequest(JsonRequestProcessor.java:502) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.router.processor.standard.json.JsonRequestProcessor.processIndividualRequestsInThisThread(JsonRequestProcessor.java:150) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.router.processor.standard.json.JsonRequestProcessor.process(JsonRequestProcessor.java:133) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.router.RequestRouter.processJsonRequest(RequestRouter.java:83) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.servlet.DirectJNgineServlet.processRequest(DirectJNgineServlet.java:617) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at com.softwarementors.extjs.djn.servlet.DirectJNgineServlet.doPost(DirectJNgineServlet.java:580) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at org.sonatype.nexus.extdirect.internal.ExtDirectServlet.doPost(ExtDirectServlet.java:121) [org.sonatype.nexus.plugins.nexus-extdirect-plugin:3.0.0.SNAPSHOT]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) [javax.servlet-api:3.1.0]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [javax.servlet-api:3.1.0]
at com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:287) [com.google.inject:4.0.0]
at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:277) [com.google.inject:4.0.0]
at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:182) [com.google.inject:4.0.0]
at com.google.inject.servlet.DynamicServletPipeline.service(DynamicServletPipeline.java:70) [com.google.inject:4.0.0]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:85) [com.google.inject:4.0.0]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:112) [org.apache.shiro.web:1.2.3]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82) [com.google.inject:4.0.0]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:112) [org.apache.shiro.web:1.2.3]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82) [com.google.inject:4.0.0]
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) [org.apache.shiro.web:1.2.3]
at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) [org.apache.shiro.web:1.2.3]
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) [org.apache.shiro.web:1.2.3]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) [org.apache.shiro.web:1.2.3]
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) [org.apache.shiro.web:1.2.3]
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) [org.apache.shiro.web:1.2.3]
at org.sonatype.nexus.security.SecurityFilter.executeChain(SecurityFilter.java:85) [org.sonatype.nexus.security:3.0.0.SNAPSHOT]
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) [org.apache.shiro.web:1.2.3]
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) [org.apache.shiro.core:1.2.3]
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) [org.apache.shiro.core:1.2.3]
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) [org.apache.shiro.core:1.2.3]
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) [org.apache.shiro.web:1.2.3]
at org.sonatype.nexus.security.SecurityFilter.doFilterInternal(SecurityFilter.java:101) [org.sonatype.nexus.security:3.0.0.SNAPSHOT]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) [org.apache.shiro.web:1.2.3]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82) [com.google.inject:4.0.0]
at com.sonatype.nexus.licensing.internal.LicensingRedirectFilter.doFilter(LicensingRedirectFilter.java:130) [com.sonatype.nexus.plugins.nexus-licensing-plugin:3.0.0.SNAPSHOT]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82) [com.google.inject:4.0.0]
at com.codahale.metrics.servlet.AbstractInstrumentedFilter.doFilter(AbstractInstrumentedFilter.java:97) [com.codahale.metrics.servlet:3.0.2]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82) [com.google.inject:4.0.0]
at org.sonatype.nexus.internal.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:63) [org.sonatype.nexus.core:3.0.0.SNAPSHOT]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82) [com.google.inject:4.0.0]
at org.sonatype.nexus.internal.web.EnvironmentFilter.doFilter(EnvironmentFilter.java:92) [org.sonatype.nexus.core:3.0.0.SNAPSHOT]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82) [com.google.inject:4.0.0]
at com.google.inject.servlet.DynamicFilterPipeline.dispatch(DynamicFilterPipeline.java:104) [com.google.inject:4.0.0]
at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:133) [com.google.inject:4.0.0]
at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:130) [com.google.inject:4.0.0]
at com.google.inject.servlet.GuiceFilter$Context.call(GuiceFilter.java:203) [com.google.inject:4.0.0]
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:130) [com.google.inject:4.0.0]
at org.sonatype.nexus.bootstrap.osgi.DelegatingFilter.doFilter(DelegatingFilter.java:73) [org.sonatype.nexus.bootstrap:3.0.0.SNAPSHOT]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) [org.eclipse.jetty.servlet:9.2.9.v20150224]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585) [org.eclipse.jetty.servlet:9.2.9.v20150224]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577) [org.eclipse.jetty.security:9.2.9.v20150224]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) [org.eclipse.jetty.servlet:9.2.9.v20150224]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [org.eclipse.jetty.server:9.2.9.v20150224]
at com.codahale.metrics.jetty9.InstrumentedHandler.handle(InstrumentedHandler.java:175) [com.codahale.metrics.jetty9:3.0.2]
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.Server.handle(Server.java:497) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) [org.eclipse.jetty.server:9.2.9.v20150224]
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) [org.eclipse.jetty.io:9.2.9.v20150224]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) [org.eclipse.jetty.util:9.2.9.v20150224]
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) [org.eclipse.jetty.util:9.2.9.v20150224]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]