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bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-m

From: Dmitry Gutov
Subject: bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data
Date: Tue, 17 Mar 2020 13:06:09 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

On 17.03.2020 3:01, Michael Heerdegen wrote:
Another defvar with a missing init value so the variable is not globally
special?  Or is this case intentional for some reason?

I guess someone with a bride knowledge of Emacs should look at all
locations of such defvars and see whether an init value should be added.

It doesn't look like this bug should be solved this way. Having "... is unbound" is better because it points at some function forgetting to let-bind this variable (someone should find out which and to which values).

Whereas if it had an init value, that would mask such problems because nil is a somewhat valid value.

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