$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-ferret.git /var/lib/mock/f40-build-2590673-62633/root/chroot_tmpdir/scmroot/gap-pkg-ferret
Cloning into '/var/lib/mock/f40-build-2590673-62633/root/chroot_tmpdir/scmroot/gap-pkg-ferret'...
$ git fetch origin 0145c22836171b6b6e1e3a6312d93cb41c46fb43:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-ferret
 * [new ref]         0145c22836171b6b6e1e3a6312d93cb41c46fb43 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0145c22 Version 1.0.10