Last modified: 2013-05-22 23:54:47 UTC
When the VisualEditor replaces the normal "Edit" tab with "Edit source" it deletes any selected/active state on the tab. This results in an active edit tab becoming non-active when you are on &action=edit. Additionally on a non existent page "Create" gets replaced with "Edit source" instead of something like "Create source".
This is a dupe of three different bugs, but I'll settle for the obvious one. :-) (A prior search when you're reporting a bug does help avoid this! :-)) *** This bug has been marked as a duplicate of bug 47452 ***