Strikeout values are not written to font

[jens]

I noticed that the values in RFont.info.openTypeOS2StrikeoutSize and RFont.info.openTypeOS2StrikeoutPosition are not written into a generated OTF. Instead, the openTypeOS2StrikeoutSize is always the same as the postscriptUnderlineThickness and the openTypeOS2StrikeoutPosition is set to the x-height * 0.6, it looks like some kind of FDK fallback is taking place there.

[frederik]

hm, weird

ufo2fdk adds those value correctly into the source .otf before sending it to fdk
see https://github.com/typesupply/ufo2fdk/blob/master/Lib/ufo2fdk/outlineOTF.py#L321-L329