Mentions in pull request description breaks with certain characters (BB-9121)

Issue #7945 duplicate
Jim Sheldon
created an issue

I tried mentioning a user with a - in their username, and only the first part of the username up to the - was interpreted.

The username was


But only


was interpreted.

And conveniently enough, it seems this description field has the same bug, so see for yourself:

@Jon Bailey

Hopefully @Jonathan Beavers isn't spammed too much from this...