$ git clone -n https://src.fedoraproject.org/rpms/vecgeom.git /var/lib/mock/f40-build-795060-139926/root/chroot_tmpdir/scmroot/vecgeom
Cloning into '/var/lib/mock/f40-build-795060-139926/root/chroot_tmpdir/scmroot/vecgeom'...
$ git fetch origin a0a0cec7cea51c506a8d3acfaa3fa27777057c46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vecgeom
 * [new ref]         a0a0cec7cea51c506a8d3acfaa3fa27777057c46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0a0cec Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild