$ git clone -n https://src.fedoraproject.org/rpms/xfburn.git /var/lib/mock/f40-build-750107-114865/root/chroot_tmpdir/scmroot/xfburn
Cloning into '/var/lib/mock/f40-build-750107-114865/root/chroot_tmpdir/scmroot/xfburn'...
$ git fetch origin 83e73befa05d32fbe64596fc58b357d674f41287:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfburn
 * [new ref]         83e73befa05d32fbe64596fc58b357d674f41287 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83e73be Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild