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

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

[Mickey Petersen]

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'

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

[Yuan Fu]

Mickey Petersen <mickey@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

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

[Mickey Petersen]

Yuan Fu <casouri@gmail.com> writes:

> Mickey Petersen <mickey@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

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

[Stefan Kangas]

Mickey Petersen <mickey@masteringemacs.org> writes:

> Yuan Fu <casouri@gmail.com> writes:
>
>> Mickey Petersen <mickey@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?