Currently fribidi 1.0.1 supports Unicode 10, and built in rawhide. And now pango 1.41.1 uses external fribidi and drop mini-fribidi. Please update pango to 1.41.1 in Fedora rawhide, thanks.
pango-1.41.1-1.fc29 has been built. https://koji.fedoraproject.org/koji/buildinfo?buildID=1052038