$ git clone -n https://src.fedoraproject.org/rpms/sisu.git /var/lib/mock/f40-build-2326498-58834/root/chroot_tmpdir/scmroot/sisu
Cloning into '/var/lib/mock/f40-build-2326498-58834/root/chroot_tmpdir/scmroot/sisu'...
$ git fetch origin c999e7125c85fe4ffa1a638a1abc413d1cd8489b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sisu
 * [new ref]         c999e7125c85fe4ffa1a638a1abc413d1cd8489b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c999e71 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild