$ git clone -n https://src.fedoraproject.org/rpms/ucpp.git /var/lib/mock/f40-build-791397-137477/root/chroot_tmpdir/scmroot/ucpp
Cloning into '/var/lib/mock/f40-build-791397-137477/root/chroot_tmpdir/scmroot/ucpp'...
$ git fetch origin 7155a9af147281a5d6cdb92d882953ee8d10cf18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ucpp
 * [new ref]         7155a9af147281a5d6cdb92d882953ee8d10cf18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7155a9a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild