bug#21304: 24.5; follow-switch-to-buffer changes positions

[Stefan Kangas]

martin rudalics <rudalics@gmx.at> writes:

>> `follow-switch-to-buffer' doesn't retain cursor position nor buffer
>> position within the windows.
>>
>> How to reproduce the bug:
>>
>> - Start Emacs.
>> - Type `C-h n' (NEWS gets displayed)
>> - Type `C-h C-c' (COPYING gets displayed)
>> - Type `C-x 3' (the window gets split)
>> - Type `M-x follow-mode RET' (follow mode gets enabled)
>> - Type `C-v' (the buffer gets scrolled -- note the cursor position)
>> - Type `M-x follow-switch-to-buffer RET RET' (NEWS gets displayed)
>> - Type `M-x follow-switch-to-buffer RET RET' (COPYING gets displayed again)
>>
>> I'd expect the window contents and cursor position would be the same as
>> after typing `C-v'; there is no reason why they should be changed just
>> after switching to another buffer and back.  But they are changed.
>
> I see the behavior you describe with Emacs 25 but do not see it with the
> upcoming release version.  Can you try with Emacs 26?

More information was requested, but none was given within 2 years.  The
last person to write in the thread cannot reproduce this bug.

I'm therefore going to assume that this has been fixed, and close this
bug report.  If this is still an issue in Emacs 26 or later, please
reopen the bug.

Best regards,
Stefan Kangas