Putting markup inside a link doesn't work

(Bug, Investigate , Priority: High, Test Status: No automated tests yet , Reported By Bad Link: Thing 3y284oe not found, )
QText
Summary: That is, if I try to boldface some text inside of a _QLButton, I get raw HTML instead.
I've hit this myself several times, but crediting to Eric since he has also observed it.
I believe the issue here is that we're going through Markdown, and Markdown can't cope with additional markdown inside of a link construct. We may need to move to raw <a> tags instead.