[cairo] release ?

[Matthias Clasen]

I've been down many dead ends here. What I am looking at currently is this:

$ ./hb-unicode-encode 1f468 200D 2695 fe0f | ../../util/hb-shape
--show-unicode /usr/share/fonts/google-noto-emoji/NotoColorEmoji.ttf
<U+1F468,U+200D,U+2695,U+FE0F>
[gid1586=0+2550]

hb-shape shapes the "man health worker" sequence to a single glyph, as
expected
My debug spew from inside pango shows this:

hb shape font: Noto Color Emoji 81.75
calling hb shape: item text: 👨‍⚕️
unicode: 1f468 200d 2695 fe0f
hb shape output: 2 glyphs: 1586 3

Same input sequence, but an extra glyph is produced. Do you have any idea
why this happens ?

Not sure yet how that messes up the rendering in cairo later
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