I've just found on Serbian Wikipedia that we have two MediaWiki's accounts from AbuseFilter extension with usernames "Филтер злоупотреба" and "Филтер злоупотребе".

You can see it as well on https://sr.wikipedia.org/w/index.php?title=Посебно:Списак_корисника&group=sysop

These accounts aren't global, what you can see on https://meta.wikimedia.org/wiki/Special:CentralAuth?target=Филтер+злоупотреба and https://meta.wikimedia.org/wiki/Special:CentralAuth?target=Филтер+злоупотребе

Is merging Филтер злоупотребе to Филтер злоупотреба possible? There aren't any changes or actions done by these automatic accounts.

Best regards,

Zoran