This issue has happened for me on two occasions now. And it's lucky that no one noticed the issue that decided to take advantage of it. But when I tried to modify the Bureaucrat and Techie usergroups on my wiki, the requirements to implicitly be a member of those groups is constantly reset. So I've been forced to disable autopromotion for those usergroups for now. Since both usergroups allow access to permissions that are reserved for highly trusted users. And with this autopromotion glitch that keeps occurring, it allows any user that has confirmed their email to access those usergroups.
I've been trying to set the following requirements in order for a user to be a Bureaucrat implicitly:
#Have confirmed their email
#Have Founder rights (this requirement keeps getting reset)
#Have Techie rights (this requirement keeps getting reset)
I've been trying to set the following requirements in order for a user to be a Techie implicitly:
#Have confirmed their email
#Have Founder rights (this requirement keeps getting reset)
#Have Bureaucrat rights (this requirement keeps getting reset)
Here is the ManageWiki log of the wiki in question if it helps. https://csydes.miraheze.org/wiki/Special:Log?type=managewiki&user=&page=&wpdate=&tagfilter=&wpfilters%5B%5D=newusers