https://bugzilla.redhat.com/show_bug.cgi?id=493721
"The new password cannot be the same as your old password or previous
passwords."
If you won't let me choose my password, I have no use for you. I have
too many systems and web browsers to use and too many places that
need passwords for any site to decide I can't use my choice of
password. Been nice knowing you, but Fedora has no use for me, and I
have no use for Fedora, if Fedora's going to be this way. I've
changed banks over lesser stupidities.
Just set a new temporary password, then log and set back your old one.
Yeah, I shouldn't be telling you this...
Matthias