From xemacs-m  Thu Feb  6 22:29:39 1997
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From: Kyle Jones <kyle_jones@wonderworks.com>
To: xemacs-beta@xemacs.org
Subject: Re: 20.0: recipe for extent_changed_for_redisplay crash
In-Reply-To: <m2wwslw9wl.fsf@altair.xemacs.org>
References: <QQcbun05817.199702070223@crystal.WonderWorks.COM>
	<m2wwslw9wl.fsf@altair.xemacs.org>

Steven L. Baur writes:
 > duplicable & replicating extents looks like it's completely broken.
 > 
 > Why do we need this feature?  Nothing appears to be using it now.

VM 6 uses them for MIME attachment tags in mail composition
buffers.  The idea is that you move around attachments with
normal editing commands.  I don't suppose the 'replicating
property is really needed, since the text properties code gets by
without it.

