$ git clone -n https://src.fedoraproject.org/rpms/frei0r-plugins.git /var/lib/mock/f31-build-68515-30193/root/chroot_tmpdir/scmroot/frei0r-plugins
Cloning into '/var/lib/mock/f31-build-68515-30193/root/chroot_tmpdir/scmroot/frei0r-plugins'...
$ git reset --hard a58907d6ce7d5f2cb6d6fd4bfb4fae3e6f87400f
HEAD is now at a58907d Fix fails to build with opencv 3.4.2 (https://github.com/dyne/frei0r/issues/26)