$ git clone -n https://src.fedoraproject.org/rpms/kmag.git /var/lib/mock/f39-build-2063847-49192/root/chroot_tmpdir/scmroot/kmag
Cloning into '/var/lib/mock/f39-build-2063847-49192/root/chroot_tmpdir/scmroot/kmag'...
$ git fetch origin a6311ab07503ef6fdbb3270e7717caf089570dae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmag
 * [new ref]         a6311ab07503ef6fdbb3270e7717caf089570dae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6311ab 23.08.4