https://bugzilla.redhat.com/show_bug.cgi?id=1193878
--- Comment #10 from Beat Küng beat-kueng@gmx.net ---
No, rawhide and F21 uses different version of libscrypt as you can from root.log file of respective koji build for rawhide and F21.
F21 - libscrypt version - 1.20-1.fc21 Scratch build - http://koji.fedoraproject.org/koji/taskinfo?taskID=9476344 root.log - https://kojipkgs.fedoraproject.org//work/tasks/6347/9476347/root.log
rawhide - libscrypt version - 1.19-3.fc22 Scratch build - http://koji.fedoraproject.org/koji/taskinfo?taskID=9476350 root.log - https://kojipkgs.fedoraproject.org//work/tasks/6353/9476353/root.log
Ok then it makes sense. But rawhide should use the newer fixed version then.