$ git clone -n https://src.fedoraproject.org/rpms/frei0r-plugins.git /var/lib/mock/f42-build-3360762-45036/root/chroot_tmpdir/scmroot/frei0r-plugins
Cloning into '/var/lib/mock/f42-build-3360762-45036/root/chroot_tmpdir/scmroot/frei0r-plugins'...
$ git fetch origin b4fa87e75c69e0a447ca7cf227e75eb9b1fa0742:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/frei0r-plugins
 * [new ref]         b4fa87e75c69e0a447ca7cf227e75eb9b1fa0742 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4fa87e Rebuild for opencv-4.11.0