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        Tue, 10 May 2016 13:59:10 -0700 (PDT)
From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <160510140002.ZM4469@torch.brasslantern.com>
Date: Tue, 10 May 2016 14:00:02 -0700
In-Reply-To: <160510131355.ZM1828@torch.brasslantern.com>
Comments: In reply to Bart Schaefer <schaefer@brasslantern.com>
        "Re: Completion in empty double-quotes generates error" (May 10,  1:13pm)
References: <160330110652.ZM1432@torch.brasslantern.com> 
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	<160401181824.ZM23675@torch.brasslantern.com> 
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To: zsh-workers@zsh.org
Subject: Re: Completion in empty double-quotes generates error
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On May 10,  1:13pm, Bart Schaefer wrote:
}
} I won't have a chance to look at this for at least another 3 weeks, so

Having said that, I took a guess and may have been lucky:

diff --git a/Src/lex.c b/Src/lex.c
index 25b372a..e36a01e 100644
--- a/Src/lex.c
+++ b/Src/lex.c
@@ -1795,6 +1795,10 @@ gotword(void)
 	if (zlemetacs >= nwb) {
 	    wb = nwb;
 	    we = nwe;
+	} else {
+	    wb = zlemetacs + addedx;
+	    if (we < wb)
+		we = wb;
 	}
 	lexflags = 0;
     }

This stops the "sh -c <TAB>" warning/coredump for me; I wasn't able to
reproduct the "tmux new <TAB>" error.  The assignment to "we" seems to
be entirely unnecessary, but it looks wrong to omit it.