It's the brackets used INSIDE the quotes that is causing the problem. It looks like it is going to be a fix to the comic template itself (for its use of the BlockQuote and specifically the OpenBrackets/CloseBrackets template use inside the main comic template. Nathan was the guru on those ones and I STILL don't follow the code though I have stared at it about a million times.
If you want to make it easy though, the other fix would be to just remove the links INSIDE the quotes themselves - like
this.