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Date: Tue, 23 Aug 2016 22:48:42 +0000
From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: zsh-workers@zsh.org
Subject: file completion(?) erases word typed
Message-ID: <20160823224842.GA24864@fujitsu.shahaf.local2>
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X-Seq: zsh-workers 39093

I noticed something odd in a completion function that (eventually) calls _path_files:

% git config sendemail.smtpserver <TAB><^C> # autoload
% compdef __git_sendmail_smtpserver_values f 
% f /usr/bin/gtk-update-icon-cache-3.<TAB>
% f <CURSOR>

It erased the word I'd typed. ☹

It works fine when the period hasn't been typed.  I've diffed
_complete_debug traces and saw in $_lastcomp that compstate[unambiguous]
differs between the two cases, but I'm not sure why, since the
completion is unique («/usr/bin/gtk-update-icon-cache-3*» has one
match).