message: [text_shaper] Quickly fixing severe brain-damage implications.
diff: @@ -649,7 +649,9 @@ struct open_shaper::Private // {{{
  font_metrics output {};
  output.line_height = scaleVertical(ftFace, ftFace->height);
  - output.advance = max(computeAverageAdvance(ftFace), int(double(output.line_height) * 2.0 / 3.0));
  + output.advance = computeAverageAdvance(ftFace);
  + if (!output.advance)
  + output.advance = int(double(output.line_height) * 2.0 / 3.0);
  output.ascender = scaleVertical(ftFace, ftFace->ascender);
  output.descender = scaleVertical(ftFace, ftFace->descender);
  output.underline_position = scaleVertical(ftFace, ftFace->underline_position);
  