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

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mickey Petersen <mickey <at> masteringemacs.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.50; tree-sitter: `treesit-inspect-mode' seems to break the
 undo ring... sometimes?
Date: Sun, 08 Jan 2023 10:40:40 +0000

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.


In GNU Emacs 30.0.50 (build 6, x86_64-pc-linux-gnu, GTK+ Version
 3.24.20, cairo version 1.16.0) of 2023-01-02 built on mickey-work
Repository revision: c209802f7b3721a1b95113290934a23fee88f678
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12013000
System Description: Ubuntu 20.04.3 LTS

Configured using:
 'configure --with-native-compilation --with-json --with-mailutils
 --without-compress-install --with-imagemagick CC=gcc-10'

Message #8 received at 60652 <at> debbugs.gnu.org (full text, mbox):

From: Yuan Fu <casouri <at> gmail.com>
To: Mickey Petersen <mickey <at> masteringemacs.org>
Cc: 60652 <at> debbugs.gnu.org
Subject: Re: bug#60652: 30.0.50; tree-sitter: `treesit-inspect-mode' seems  to
 break the undo ring... sometimes?
Date: Sun, 8 Jan 2023 19:27:02 -0800

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.

Yuan

Message #11 received at 60652 <at> debbugs.gnu.org (full text, mbox):

From: Mickey Petersen <mickey <at> masteringemacs.org>
To: Yuan Fu <casouri <at> gmail.com>
Cc: 60652 <at> debbugs.gnu.org
Subject: Re: bug#60652: 30.0.50; tree-sitter: `treesit-inspect-mode' seems
 to break the undo ring... sometimes?
Date: Mon, 09 Jan 2023 09:01:11 +0000

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.

> Yuan

Message #14 received at 60652 <at> debbugs.gnu.org (full text, mbox):

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: Re: 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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