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bug#5672: 23.1; (intern-soft "") returns non-nil

From: Stefan Monnier
Subject: bug#5672: 23.1; (intern-soft "") returns non-nil
Date: Tue, 02 Mar 2010 23:15:31 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.91 (gnu/linux)

> There's a program assuming (intern-soft STR) always return nil
> if STR is the null string.

That is an invalid assumption.

> It works in Emacs 22, but doesn't in Emacs 23.

Try it with Emacs-22 after doing (intern ""), you'll get the same result
as in Emacs-23.

> However, isn't it an Emacs 23 bug?



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