Description of problem:
When you select Swiss German as language an Austrian keyboard layout is suggested in the Keyboard configuration. This should instead default to German (Switzerland) / sg.
Version-Release number of selected component (if applicable):
I have seen this on Fedora 18 Beta TC4.
Patch proposed on the anaconda-patches mailing list, but it may bring some other issues, so I'm not sure it gets approved.
Patch pushed to the master branch (Rawhide). This should be fixed in the first build for Fedora 19.
Tested, confirmed fixed in F19 Beta TC3.