$ git clone -n https://src.fedoraproject.org/rpms/R-sessioninfo.git /var/lib/mock/f40-build-2162605-50941/root/chroot_tmpdir/scmroot/R-sessioninfo
Cloning into '/var/lib/mock/f40-build-2162605-50941/root/chroot_tmpdir/scmroot/R-sessioninfo'...
$ git fetch origin 782bc3f9120dcd83bf797c25d3ecc487ab88d1a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-sessioninfo
 * [new ref]         782bc3f9120dcd83bf797c25d3ecc487ab88d1a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 782bc3f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild