$ git clone -n https://src.fedoraproject.org/rpms/kf6-knotifications.git /var/lib/mock/f42-build-side-1-3510394-46030/root/chroot_tmpdir/scmroot/kf6-knotifications
Cloning into '/var/lib/mock/f42-build-side-1-3510394-46030/root/chroot_tmpdir/scmroot/kf6-knotifications'...
$ git fetch origin 4899622e9280505f6b87e1d4bd81c34f6b0fa807:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-knotifications
 * [new ref]         4899622e9280505f6b87e1d4bd81c34f6b0fa807 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4899622 6.13.0