Dots on Russian Ёё not above letter forms

[alerque]

I initially thought this was a LibreOffice bug because when I mocked it up there were other issues with the fonts, but SILE is showing this issue too. The dots above IO turn up on the baseline next to the letter.

U+0401 CYRILLIC CAPITAL LETTER IO
U+0451 CYRILLIC SMALL LETTER IO

$ font-v report /usr/share/fonts/OTF/FRBAmericanCursive-800-GuidelinesArrowsExtrabold.otf

/usr/share/fonts/OTF/FRBAmericanCursive-800-GuidelinesArrowsExtrabold.otf:
----- name.ID = 5:
Version 1.2.1
----- head.fontRevision:
1.002

[ctrlcctrlv]

Oh ho. Good catch. I don't define a io (Ёё) at all. The way this is done in the font is through complex system called ccmp_placeholders.

Fixed in v2 @ 99dd0ad: