$ git clone -n https://src.fedoraproject.org/rpms/lxmusic.git /var/lib/mock/f39-build-1582621-38118/root/chroot_tmpdir/scmroot/lxmusic
Cloning into '/var/lib/mock/f39-build-1582621-38118/root/chroot_tmpdir/scmroot/lxmusic'...
$ git fetch origin b9c568b88ccd7063807ba2b80f381364ca354d43:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxmusic
 * [new ref]         b9c568b88ccd7063807ba2b80f381364ca354d43 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9c568b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild