Comment 29 for bug 1858636

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Marius Gedminas (mgedmin) wrote : Re: [snap] color emoji not rendered; many bw emoji rendered as boxes

Curiously, fc-cat /var/cache/fontconfig/0bd3dc0958fa2205aaaa8ebb13e2872b-le64.cache-7.bork does not complain about the cache file being invalid. It shows information about a bunch of Noto fonts BUT! not the ColorEmoji one!

diff -u <(fc-cat /var/cache/fontconfig/*.bork|cut -d'"' -f2|sort) <(ls /usr/share/fonts/truetype/noto/|sort)

shows that NotoColorEmoji.ttf is the only font missing from the font cache file.

Now it's time for baseless speculation: could it be that snap refresh somehow runs fc-cache inside a container where /var/cache/fontconfig is bind-mounted from the host OS, but /usr/share/fonts/truetype/ comes from some base snap image?