From Nemo at bug 43172:
Thanks Krenair and MatmaRex. The worst offender for this bug is the title of
Special:UserLogin/signup, MediaWiki:Createaccount .
It was originally only the title of the special page, but got recently abused
as link label from the personal toolbar of unregistered users; the result is
that e.g. in Italian it says "Register" to satisfy the new usecase and is no
longer ok as title for the special page. The two messages should be
This can be fixed by making the register personal tools message separate (e.g. pt-createaccount).
Nemo, do you think it makes sense to also do this for login and logout?