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From: Bart Schaefer <schaefer@brasslantern.com>
Date: Wed, 16 Nov 2016 21:34:32 -0800
Message-ID: <CAH+w=7YbPRhK1Mw0P7DKObaYU2vXCuECUGkvwp1d2R4K0dC7CA@mail.gmail.com>
Subject: Re: Remind me why ${name+word} is the way it is?
To: Zsh hackers list <zsh-workers@zsh.org>
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On Wed, Nov 16, 2016 at 6:33 PM, Han Pingtian <hanpt@linux.vnet.ibm.com> wrote:
>
> % name=a;echo ${name:+foo[bar]}
> zsh: no match
> %
> url-quote-magic:10: no match

What zsh version are you using?  I can't reproduce this (tried 5.2 and
git HEAD).

Line 10 is

words=("${(@Q)${(z)lbuf}}")

To get the "no match" message you have to have cshnullglob set, and
obviously you also have self-insert remapped to url-quote-magic.  I
suspect you have another setting that is influencing this.