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bug#24213: 25.1.50; Fishy use of delete-window in register.el

From: martin rudalics
Subject: bug#24213: 25.1.50; Fishy use of delete-window in register.el
Date: Sat, 13 Aug 2016 10:24:26 +0200

> The register.el commands display a preview of register contents, using
> display-buffer in register-preview.  Later, when some register was
> chosen by the user, the window showing this preview is closed via
> delete-window.
> It seems to me, that this call should be replaced by a call to
> quit-window, because this function does the right thing: It only deletes
> the window if it was previously created and otherwise shows the previous
> buffer in that window.
> If that analysis can be agreed upon: Grepping through lisp/*, I found 62
> uses of delete-window outside window.el.  I assume that most of those
> applications are problematic in the same way (e.g. finder.el).

I agree on that analysis.  At least for every window created or used by
‘display-buffer’ the appropriate action should be ‘quit-window’.  Could
you provide a patch fixing the (about ten) most obvious cases first?

Thanks, martin

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