package content is out of specification when downloading from NuGet hosted

Steps to reproduce (case issue):

• Create nuget-hosted
• Go to UI and upload angularjs 1.1.5-Unstable
  https://www.nuget.org/packages/angularjs/1.1.5-Unstable
• Try to download the package

• http://localhost:8081/repository/nuget-hosted/v3/content/angularjs/1.1.4-unstable/angularjs.1.1.4-unstable.nupkg

Actual:

Error. 404

Expected 

OK. 200

• Go to metadata

• http://localhost:8081/repository/nuget-hosted/v3/registration/angularjs/index.json

Actual

Expected:

Package id and package version must be in lowercase
https://docs.microsoft.com/en-us/nuget/api/package-base-address-resource#download-package-content-nupkg

Maybe related issue 
https://issues.sonatype.org/browse/NEXUS-26337?focusedCommentId=1006900&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-1006900