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Re: The unwarranted scrolling assumption

From: Eli Zaretskii
Subject: Re: The unwarranted scrolling assumption
Date: Fri, 18 Jun 2010 18:35:56 +0300

> From: Lennart Borgman <address@hidden>
> Date: Fri, 18 Jun 2010 17:08:18 +0200
> Cc: address@hidden
> You are looking for the reason why reconsider_clip_changes does not do
> its job. I have said (though maybe not explicitly enough, I don't
> know) that it can't because it does not have the information it needs.
> It does not have that information because narrow_to_region has erased
> it by setting clip_changed to 1.

The information is not erased, it is still present in
w->current_matrix->zv and w->current_matrix->begv.  You will see that
reconsider_clip_changes uses those to decide whether to reset the
clip_changed flag.

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