$ git clone -n https://src.fedoraproject.org/rpms/kf6-attica.git /var/lib/mock/f40-build-754765-117976/root/chroot_tmpdir/scmroot/kf6-attica
Cloning into '/var/lib/mock/f40-build-754765-117976/root/chroot_tmpdir/scmroot/kf6-attica'...
$ git fetch origin 21f576097a911c9a83e2a8f9d88bf9c1591bc4fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-attica
 * [new ref]         21f576097a911c9a83e2a8f9d88bf9c1591bc4fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21f5760 fix: add missing sources