Assertion when selecting large table in User Guide on master

[Jean-Marc Lasgouttes]

Le 03/07/2024 à 19:34, Scott Kostyshak a écrit :
> On Wed, Jul 03, 2024 at 05:48:23PM GMT, Jean-Marc Lasgouttes wrote:
>> Le 03/07/2024 à 06:17, Scott Kostyshak a écrit :
>>> I still get an assertion while selecting the phone table.
>>
>> Hmm, I was two quick in my testing.
>>
>> I just pushed two patches which:
>> 1/ avoids setting Update::SinglePar in a place where this does not make
>> sense
>> 2/ make BufferView::singleParUpdate robust in such a case (but still emit a
>> warning if the position was not set, which should not happen).
>>
>> Please test.
> 
> Works well! Much harder to break, but 1 out of 30 times I still get an
> issue. I don't have a recipe to reproduce. It has to do with scrolling
> up fast, and then pausing (by moving the cursor down) then scrolling up
> again. I know that's not a useful description. Does the attached
> backtrace give a clue?

Well, it looks like the second one we had, fixed by 6e0ea4269a, but it 
seems that you found a new path to trigger it. The best would be to be 
able to reproduce it.

Can you open a ticket, please, so that it is not forgotten? I can always 
fix it with a new test, but I'd rather understand why it happens.

JMarc