Emoji like those in this article don't have this issue though.
You can still have problems with them. They propose to ID a commit type by the first character.
Arabic is written from right to left. Which emoji is the first character of this sequence? It actually depends on the position of invisible LTR control characters.
علامة يمين-إلى-يسا
EDIT: BTW, HN does not support emojis apparently
Now multiply this by a thousand with Unicode exact lookalike glyphs.