$ git clone -n https://src.fedoraproject.org/rpms/gnome-control-center.git /var/lib/mock/f40-build-744727-111801/root/chroot_tmpdir/scmroot/gnome-control-center
Cloning into '/var/lib/mock/f40-build-744727-111801/root/chroot_tmpdir/scmroot/gnome-control-center'...
$ git fetch origin 9de66fcfe06ef60c2db14674883e183d33a29949:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-control-center
 * [new ref]         9de66fcfe06ef60c2db14674883e183d33a29949 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9de66fc Remove unused glx-utils dependency (rhbz#2247096)