We can see the text: " la page آهو (1 version restaurée : Correct)" in https://fr.wiktionary.org/w/index.php?title=Sp%C3%A9cial%3AJournal&type=delete&user=Unsui&offset=20141208150000&limit=10 : I guess the reason for deletion is: "1 version restaurée : Correct", but it is not displayed well.
See Also: T34403
(Copying my own comment from T115283, which is a dupe of this.)
This only happens on Chrome. The parentheses auto-fixing part of the Unicode bidirectional algorithm is implemented in Firefox, but not in Chrome.
The solutions are:
Language::embedBidi() will probably work, but it uses control characters, which is less elegant than proper HTML or CSS.
The trouble with usernames is that it happens in a lot of other contexts, and this needs to be done every time. It would be nice to have a uniform solution for all usernames. Same for page titles... it's fun :)