NEXUS-8488, I setup a proxy via System>HTTP, but I saw something weird so went to do it again. Rather than delete all the settings I had input, I simply unchecked the proxy and saved.
When I did this, I was presented with a screen with HTTP Proxy still checked but both fields validating, despite the fact I had saved with HTTP Proxy unchecked.
If you uncheck again and save this time it turns off. Similarly if you refresh the page or leave and return, it will be unchecked.
Steps to repro:
1) Load System>HTTP
2) Check HTTP Proxy
3) Enter HTTP Proxy host and HTTP Proxy port
5) Uncheck HTTP Proxy
6) Save; BUG: HTTP Proxy rechecks (tho fields are wiped)
I did not check older NX3 or NX2 at this time.