Topic: [Bug] Forum Navbar Title Contains HTML Tags, and shouldn't

Bug overview description.
The links to other forum categories in the dropdown navbar at the top of each board has a mouseover text which includes verbatim HTML tags. It appears the text is re-used from that shown when creating a new topic.
What part(s) of the site page(s) are affected?
Forum
What is the expected behavior?
Plain text in mouseover blurbs
What actual behavior is given instead?
Hard-to-read plaintext interspersed with HTML tags
Time of incident (if applicable).
Presumably, this has been around for a while, but 2017-10-19
Can you reproduce the bug every time?
Yep
What steps did you take to replicate this bug?
1. Go here https://e621.net/forum?category=11
2. drop down the "Site bug reports and feature requests" navbar
3. hover over "Site bug reports and feature requests" until the mouseover text appears
4. observe gibberish
Errors or other messages returned (if any).
None

Updated by BlueDingo