$ git clone -n https://src.fedoraproject.org/rpms/kf6-knotifications.git /var/lib/mock/f42-build-861994-170551/root/chroot_tmpdir/scmroot/kf6-knotifications
Cloning into '/var/lib/mock/f42-build-861994-170551/root/chroot_tmpdir/scmroot/kf6-knotifications'...
$ git fetch origin 82cb9a0c723bc14f72fb35b6cca8a32aba4e1634:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-knotifications
 * [new ref]         82cb9a0c723bc14f72fb35b6cca8a32aba4e1634 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82cb9a0 6.8.0