Link title in sidebar markup breaks blog

In order to save sidebar estate I put a [link title](https://daringfireball.net/projects/markdown/syntax#link) in the markup of the sidebar links:

``` markdown
- [example@zeromail.bit](/mail.zeronetwork.bit/?to=example "Drop me a line")
```

But that rendered the blog almost useless to me: While I could still post comments, I couldn't add new post, nor could I edit existing posts.
The browser's debug console said (I'm paraphrasing here): “all.js: unexpected token: D”

When I removed the link titles, everything went back to normal.

It is worth noticing that using link titles in the body text of blog entries works like expected.