$ git clone -n https://src.fedoraproject.org/rpms/luxcorerender.git /var/lib/mock/f38-build-side-42-init-devel-848958-28425/root/chroot_tmpdir/scmroot/luxcorerender
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-848958-28425/root/chroot_tmpdir/scmroot/luxcorerender'...
$ git fetch origin 0fb6479a033eac06ee5534793e246a0b825b8b6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/luxcorerender
 * [new ref]         0fb6479a033eac06ee5534793e246a0b825b8b6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0fb6479 Fix typo