$ git clone -n https://src.fedoraproject.org/rpms/xmvn.git /var/lib/mock/f38-build-side-42-init-devel-688466-26776/root/chroot_tmpdir/scmroot/xmvn
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-688466-26776/root/chroot_tmpdir/scmroot/xmvn'...
$ git fetch origin 19ef8f7b27faa2792f85d262f060114f0e2fdb1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmvn
 * [new ref]         19ef8f7b27faa2792f85d262f060114f0e2fdb1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19ef8f7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild