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bug#9642: move-overlay creates an empty overlay with the evaporate prope


From: Paul Eggert
Subject: bug#9642: move-overlay creates an empty overlay with the evaporate property
Date: Sun, 02 Oct 2011 21:21:52 -0700
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.23) Gecko/20110922 Thunderbird/3.1.15

On 10/02/11 20:56, Eli Zaretskii wrote:
> The interval 0..1 is not empty.

True, but (move-interval FOO 0 1) creates
an empty interval, with bounds 1..1, and this
empty interval is what's causing the problem.

If (move-interval FOO 0 1) created a nonempty interval,
the problem would not be happening
(though we might have other problems ...).





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