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bug#21598: 24.5; Auto-revert-mode loads images as text


From: Nicolas Petton
Subject: bug#21598: 24.5; Auto-revert-mode loads images as text
Date: Mon, 25 Jul 2016 23:42:26 +0200
User-agent: Notmuch/0.21 (https://notmuchmail.org) Emacs/25.1.50.1 (x86_64-unknown-linux-gnu)

Eli Zaretskii <eliz@gnu.org> writes:

> Actually, I see that image-mode installs an after-revert-hook, bit the
> hook function, image-after-revert-hook, does nothing in this case
> because image-get-display-property returns nil.

It seems to return nil because `revert-buffer' is called with is called
with `preserve-modes' set to non-nil, so `image-mode' is not called
again, so `image-toggle-display-image' is never called on the updated
buffer.

I installed a fix in master, commit b176d16.

Nico

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