SIGSEGV when doing undo after putting bib items in a note

[Scott Kostyshak]

On Sat, Jul 13, 2024 at 06:32:41PM GMT, Kornel Benko wrote:
> Am Sat, 13 Jul 2024 10:42:26 -0400
> schrieb Scott Kostyshak <skostysh at lyx.org>:
> 
> > On Sat, Jul 13, 2024 at 02:49:06PM GMT, Kornel Benko wrote:
> > > Am Wed, 3 Jul 2024 22:04:44 -0400
> > > schrieb Scott Kostyshak <skostysh at lyx.org>:
> > >   
> > > > On Thu, Jul 04, 2024 at 12:39:22AM GMT, Jean-Marc Lasgouttes wrote:  
> > > > > Le 02/07/2024 à 18:01, Scott Kostyshak a écrit :    
> > > > > > To reproduce:
> > > > > > 
> > > > > > 1. Fresh build on current master.
> > > > > > 2. Open User Guide.
> > > > > > 3. Make sure that editing is enabled, and turn off change tracking.
> > > > > > 4. Scroll to the end.
> > > > > > 5. Select multiple bib items.
> > > > > > 6. Click on the yellow note.
> > > > > > 7. Do Undo with ctrl + z.
> > > > > > 
> > > > > > I get the attached backtrace. Can anyone else reproduce?
> > > > > > 
> > > > > > If I don't turn off change tracking, different strange behavior occurs.    
> > > > > 
> > > > > I cannot reproduce, and I am surprised because I obtained that with 2.3 once
> > > > > when trying to fix the previous bug.
> > > > > 
> > > > > Do you have a more precise recipe? I tried running under valgrind (because
> > > > > your backtrace is about deleting paragraph objects), without much success.    
> > > > 
> > > > This one I can reproduce pretty reliably. I think the only thing
> > > > imprecise about the recipe is (5), right? I attach a screenshot of a
> > > > specific selection of multiple bib items.
> > > > 
> > > > Scott  
> > > 
> > > Cannot reproduce. These are the messages i get on terminal are
> > > ----------------------------------------
> > > The key Armenian already exists,
> > > it will be changed to Armenian-1.
> > > Warning: Keys must be unique!
> > > ----------------------------------------
> > > The key Cyrillic already exists,
> > > it will be changed to Cyrillic-1.
> > > Warning: Keys must be unique!
> > > ----------------------------------------
> > > The key Farsi already exists,
> > > it will be changed to Farsi-1.
> > > Warning: Keys must be unique!
> > > ----------------------------------------
> > > The key Hebrew already exists,
> > > it will be changed to Hebrew-1.
> > > Warning: Failed to produce 1 preview snippet(s)
> > > 
> > > Undo works without crash.  
> > 
> > Good to know. Are you sure you turned off the change tracking (in step
> > 3)? I only get those messages if change tracking is on.
> > 
> > I can still reproduce on current master.
> > 
> > Scott
> 
> Yes, pretty sure. Anyway trying again ... same result. No crash.

OK thanks for trying.

Scott
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