bug#20359: Indentation bug in newest version of AUCTeX

[Peter Harpending]

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Another example:
Before this bug: http://ix.io/hYH
After this bug: http://ix.io/hYI

I should have mentioned, I'm on GNU Emacs 24.4.1 on Arch Linux.

> How do you fill your paragraphs?  Do you select all of them at once
> and then issue M-q or do you do it one by one?

I discovered this by running M-q on individual paragraphs, but I observe
the same behavior with LaTeX-fill-buffer.

*   I get similar behavior after uninstalling AUCTeX. The same issue
    occurs with \item's, but Emacs is no longer unindenting in other
    environments.
*   I get the same behavior after installing AUCTeX 11.88 manually.
*   I get the same behavior after installing AUCTeX 11.88 through the
    Arch Linux package system.
*   I get the same behavior after installing AUCTeX 11.87 manually.
*   I get the same behavior after installing AUCTeX 11.86 manually.

I would be inclined to think that this is an Emacs bug, but I haven't
updated Emacs since January 27, and this bug showed up yesterday (April
17).

However: 
I know this is not a problem with GNU Emacs, because I last updated that
in January, and this problem showed up yesterday after I updated my ELPA
packages.

Peter Harpending
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