$ git clone -n https://src.fedoraproject.org/rpms/groff.git /var/lib/mock/f40-build-786644-134487/root/chroot_tmpdir/scmroot/groff
Cloning into '/var/lib/mock/f40-build-786644-134487/root/chroot_tmpdir/scmroot/groff'...
$ git fetch origin 6aaa3c54398f0b1e439da7ab505092773e208bd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/groff
 * [new ref]         6aaa3c54398f0b1e439da7ab505092773e208bd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6aaa3c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild