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From: Juri Linkov <juri@linkov.net>
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Subject: Re: Updating *Completions* as you type
Date: Tue, 17 Oct 2023 21:23:09 +0300
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> Currently if the user re-runs minibuffer-completion-help, point is
> reset to the beginning of the buffer.  This throws away information
> unnecessarily; let's keep point on the same completion the user
> previously selected.

Are you sure everyone would want to always preselect the previous
candidate in the middle of completions in every new completion?