$ git clone -n https://src.fedoraproject.org/rpms/freefem++.git /var/lib/mock/f38-build-side-42-init-devel-726695-27327/root/chroot_tmpdir/scmroot/freefem++
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-726695-27327/root/chroot_tmpdir/scmroot/freefem++'...
$ git fetch origin e32684a564c919a689eb2f5a749f57a0a7c1fe4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freefem++
 * [new ref]         e32684a564c919a689eb2f5a749f57a0a7c1fe4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e32684a Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild