$ git clone -n https://src.fedoraproject.org/rpms/xen.git /var/lib/mock/f41-build-814642-149002/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/f41-build-814642-149002/root/chroot_tmpdir/scmroot/xen'...
$ git fetch origin bac467190c3e7b9b6aee771ca6366689c9a56a10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xen
 * [new ref]         bac467190c3e7b9b6aee771ca6366689c9a56a10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bac4671 Rebuilt for Python 3.13