$ git clone -n https://src.fedoraproject.org/rpms/colord.git /var/lib/mock/f39-build-1532714-36225/root/chroot_tmpdir/scmroot/colord
Cloning into '/var/lib/mock/f39-build-1532714-36225/root/chroot_tmpdir/scmroot/colord'...
$ git fetch origin ebbfd1c0ad512ec46819cf95c4c3c9a41c5b0479:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/colord
 * [new ref]         ebbfd1c0ad512ec46819cf95c4c3c9a41c5b0479 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ebbfd1c Rebuild for glib2 symbol export fix (#2232723)