$ git clone -n https://src.fedoraproject.org/rpms/vdr-femon.git /var/lib/mock/f40-build-1898228-25068/root/chroot_tmpdir/scmroot/vdr-femon
Cloning into '/var/lib/mock/f40-build-1898228-25068/root/chroot_tmpdir/scmroot/vdr-femon'...
$ git fetch origin 91c63695ee2880f75ae75373e34acd4f9e1ab5b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-femon
 * [new ref]         91c63695ee2880f75ae75373e34acd4f9e1ab5b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91c6369 Merge branch 'rawhide' into f40