Thread:Project:Support desk/Upgrade from MW 1.18.1 to 1.23.5 broke sysop and Bureaucrat users functionality/reply (10)

Output using: Special:UserMerge with User_ID:

Merge and delete users

ERROR:  Invalid old username

Usernames to merge:

Old user (merge from):	5

New user (merge to):	63

x 	 Delete old user

Does work with User_Names that are different except when only difference is in Case.

According to this script: Username = USername