$ git clone -n https://src.fedoraproject.org/rpms/poxml.git /var/lib/mock/f39-build-1459432-33133/root/chroot_tmpdir/scmroot/poxml
Cloning into '/var/lib/mock/f39-build-1459432-33133/root/chroot_tmpdir/scmroot/poxml'...
$ git fetch origin 8b0db37a08797a251a48e2bb77a612ff700a6c1c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/poxml
 * [new ref]         8b0db37a08797a251a48e2bb77a612ff700a6c1c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b0db37 23.08.2