$ git clone -n https://src.fedoraproject.org/rpms/libmpd.git /var/lib/mock/f39-build-1458021-33031/root/chroot_tmpdir/scmroot/libmpd
Cloning into '/var/lib/mock/f39-build-1458021-33031/root/chroot_tmpdir/scmroot/libmpd'...
$ git fetch origin 4537d5fe380ad6d67bef1eec97f371f20751f617:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmpd
 * [new ref]         4537d5fe380ad6d67bef1eec97f371f20751f617 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4537d5f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild