$ git clone -n https://src.fedoraproject.org/rpms/sexpp.git /var/lib/mock/f40-build-796470-140694/root/chroot_tmpdir/scmroot/sexpp
Cloning into '/var/lib/mock/f40-build-796470-140694/root/chroot_tmpdir/scmroot/sexpp'...
$ git fetch origin 537b925fb6110ad2fc86ed4db76b512c5cced746:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sexpp
 * [new ref]         537b925fb6110ad2fc86ed4db76b512c5cced746 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 537b925 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild