Commit 23113fa broke fenced code blocks

[zmwangx]

Currently, trying to edit anything immediately after a fenced code block (in either markdown-mode or gfm-mode) only results in Emacs completely freezing up. Try this:

> cat hello.md
```
hello
```
> emacs --no-init-file --load markdown-mode.el hello.md

Now go to the end of the file and try to insert anything. Nothing happens (except for 100% CPU usage).

Bisecting reveals that the problematic commit is 23113fa.

[jrblevin]

Thanks for this detailed report. I also encountered this issue yesterday and bisected, leading me to the same commit. I thought I had fixed it already though, but apparently not. I'll look into it again.

[jrblevin]

I think this is fixed now. Can you verify with the latest commit?

[zmwangx]

👍 Works now (running 1541a09).

[jrblevin]

Great—thanks for confirming!