GNU bug report logs - #60652
30.0.50; tree-sitter: `treesit-inspect-mode' seems to break the undo ring... sometimes?

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From: Stefan Kangas <stefankangas <at> gmail.com>
To: Mickey Petersen <mickey <at> masteringemacs.org>
Cc: Yuan Fu <casouri <at> gmail.com>, 60652 <at> debbugs.gnu.org
Subject: bug#60652: 30.0.50; tree-sitter: `treesit-inspect-mode' seems to break the undo ring... sometimes?
Date: Tue, 5 Sep 2023 16:32:53 -0700

Mickey Petersen <mickey <at> masteringemacs.org> writes:

> Yuan Fu <casouri <at> gmail.com> writes:
>
>> Mickey Petersen <mickey <at> masteringemacs.org> writes:
>>
>>> Steps to somewhat reliably reproduce it:
>>>
>>> 1. Enable `treesit-inspect-mode' in a valid buffer.
>>> 2. Do some light editing, and sometimes the undo ring will reset
>>> itself to just the previous undone state and the current one. In
>>> effect turning what was a history of undo events into two.
>>>
>>> Sadly, I have little more than this to go on.
>>
>> I am truly amazed :-) I don’t have any idea why, either. AFAIK
>> treesit-inspect-mode doesn’t do anything dangerous.
>>
>
> Yes, sorry for the vague report. But I figured I'd at least throw it
> out there in case someone else encounters it. It's possible something
> else is interfering, but given the simplicity of the mode, as you say,
> it is indeed odd. I will let you know if I can reproduce it reliably.

Have you had any success reproducing this?

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