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TAGS buffer generates spurious undo warnings

From: Glenn Morris
Subject: TAGS buffer generates spurious undo warnings
Date: Thu, 01 Nov 2007 15:39:57 -0400
User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)

Jared Finder wrote:

> Re-loading a really large TAGS buffer generates a spurious warning
> about undo info being discarded. TAGS buffers have no need for undo
> info! Why not just disable undo in TAGS and BROWSE and similar buffers?

Can anyone see how this could happen?

It may be obvious, but I looked at the code and couldn't see how such
a wanring would come about. I'm reluctant to disable undo just for the
sake of it...

(Undo in BROWSE has already been disabled AFAIK.)

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