$ git clone -n https://src.fedoraproject.org/rpms/gnome-control-center.git /var/lib/mock/f42-build-side-1-3498228-45961/root/chroot_tmpdir/scmroot/gnome-control-center
Cloning into '/var/lib/mock/f42-build-side-1-3498228-45961/root/chroot_tmpdir/scmroot/gnome-control-center'...
$ git fetch origin 1ed310385575eeb9760cb1fd1b8087ac46c83efd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-control-center
 * [new ref]         1ed310385575eeb9760cb1fd1b8087ac46c83efd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ed3103 Update to 48.1