$ git clone -n https://src.fedoraproject.org/rpms/sing.git /var/lib/mock/f40-build-800054-142748/root/chroot_tmpdir/scmroot/sing
Cloning into '/var/lib/mock/f40-build-800054-142748/root/chroot_tmpdir/scmroot/sing'...
$ git fetch origin 6552ce51e214640cc34e0840fa18636a7b7636ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sing
 * [new ref]         6552ce51e214640cc34e0840fa18636a7b7636ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6552ce5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild