bug#17365: 24.3; Visiting tags table in combination with fill column indicator causes Emacs to hang

[Glenn Morris]

Jon Dufresne wrote:

> The following recipe causes Emacs to hang 100%.
>
> 0. Start in a mercurial repository directory.
> 1. Run "emacs -Q -l /path/to/test.el"
> 2. M-x project-compile-and-visit-tags-table
> 3. Wait for completion.
> 4. M-x project-compile-and-visit-tags-table
> 5. Receive prompt: "Tags file /path/to/TAGS has changed, read new
> contents? (yes or no)"
> 6. Type "yes"
> 7. Emacs hangs, must send kill signal to close.

I followed the recipe, but it doesn't hang for me.