Not sure if this qualifies as a bug, pretty minor issue, but something to take a look at:
On our forum we have max emojis in title set to 0 — but I noticed one still displaying on a new post. Looking at the actual title text posted I see the user typed :) so it must have been auto-converted.
I’m guessing this is a conflict with the enable emoji shortcuts setting, and conversion from emoticon > emoji may just need to be restricted in titles to take into account the max emojis in title setting.
Special casing emoji unescape for titles required changes in many places in our codebase so for now I improved emoji validation so we properly count emoji shortcuts :), and improved the error message when emoji is disabled in titles.