Before this commit, when posting a message with some emoji sources (e.g. "x'D"),
sometimes it was not transformed into the corresponding unicode representation
(e.g. "😂").
The emojis with this issue have different escaped and unescaped source
representations:
- (unescaped) "x'D"
- (escaped) "x'D".
The emoji converter was mistakenly using the escaped representation, instead of
the unescaped one.
Task-ID 1868892