$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcompletion.git /var/lib/mock/f41-build-849284-164840/root/chroot_tmpdir/scmroot/kf6-kcompletion
Cloning into '/var/lib/mock/f41-build-849284-164840/root/chroot_tmpdir/scmroot/kf6-kcompletion'...
$ git fetch origin c9377d4cd67d93d9ecff2381cfd3d10c57c00f65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcompletion
 * [new ref]         c9377d4cd67d93d9ecff2381cfd3d10c57c00f65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9377d4 6.6.0