The confirm email of the release-de wiki send e-mail with english special pagename but german text, when creating an account.
http://prototype.wikimedia.org/release-de/Special:ConfirmEmail/*
http://prototype.wikimedia.org/release-de/Special:Invalidateemail/*
A click on the first link redirects to the localized special pagename:
http://prototype.wikimedia.org/release-de/Spezial:E-Mail_bestaetigen/*
I have not tested this on 1.16wmf.
Version: 1.17.x
Severity: enhancement