Regression: Bad font size in srt subtitles

1
00:00:01,501 --> 00:00:07,500
<font size="8">This text should be small</font>
This text should be normal
<font size="35">This text should be big</font>

Using DirectX output, font size is correct.

Using Direct3D output, font size is NOT correct (I suppose it treats size as pixels instead of treat it as points).