Last modified: 2014-08-16 19:57:59 UTC
I create user TestSysop, logout, login as Nate (bureaucrat, sysop), promote TestSysop to sysop, logout, login as TestSysop, then get message "You successfully removed your own rights. As such, you are no longer able to access this page." Not a big deal, and anyone who got this message would understand what was happening, but it's technically incorrect. URL at which I receive the message: http://localhost/test24/w/index.php?title=Special:UserRights/TestSysop&success=1
Do not redirect back to success=1 or avoid a url where the (possible) success is coded in it, see also bug 24700 for the same issue with success url for the preferences