$ git clone -n https://src.fedoraproject.org/rpms/xmms2.git /var/lib/mock/f40-build-781245-131566/root/chroot_tmpdir/scmroot/xmms2
Cloning into '/var/lib/mock/f40-build-781245-131566/root/chroot_tmpdir/scmroot/xmms2'...
$ git fetch origin 600ee539aecae0a881186d347a56f6997393be43:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmms2
 * [new ref]         600ee539aecae0a881186d347a56f6997393be43 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 600ee53 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild