$ git clone -n https://src.fedoraproject.org/rpms/jansson.git /var/lib/mock/f40-build-786648-134487/root/chroot_tmpdir/scmroot/jansson
Cloning into '/var/lib/mock/f40-build-786648-134487/root/chroot_tmpdir/scmroot/jansson'...
$ git fetch origin d9c4bc02dad087ab8b4ace028480ae575cf1f782:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jansson
 * [new ref]         d9c4bc02dad087ab8b4ace028480ae575cf1f782 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9c4bc0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild