$ git clone -n https://src.fedoraproject.org/rpms/yelp.git /var/lib/mock/f40-build-788349-135103/root/chroot_tmpdir/scmroot/yelp
Cloning into '/var/lib/mock/f40-build-788349-135103/root/chroot_tmpdir/scmroot/yelp'...
$ git fetch origin 4f435be116c06435c51681ed7d86c3bdfbfc269c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yelp
 * [new ref]         4f435be116c06435c51681ed7d86c3bdfbfc269c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f435be Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild