Crash on master because of cursor position in session

[Scott Kostyshak]

On Wed, Jan 12, 2022 at 09:24:08AM +0100, Kornel Benko wrote:
> Am Tue, 11 Jan 2022 14:43:01 -0500
> schrieb Scott Kostyshak <skostysh at lyx.org>:
> 
> > To reproduce on current master:
> > 
> > 1. Open the attached file.
> > 2. Move cursor to just in front of the second comment inset.
> > 3. Exit LyX.
> > 4. Open the file again.
> > 
> > LyX has caught an exception, it will now attempt to save all unsaved documents and exit.
> > 
> > Exception: basic_string::substr: __pos (which is 44) > this->size() (which is 43)
> > 
> > Can anyone reproduce?
> > 
> > Scott
> 
> Neither with lyx2.4 compiled with -fsanitize flag, nor without.
> 
> I tried also lyx2.3, but still no crash here.
> 
> 	Kornel

Thanks for trying.

I can only reproduce it with a specific ~/.config/LyX/lyx.conf.

If I exit LyX and remove that file, then I can no longer reproduce.

Not sure it's worth looking into since probably that lyx.conf was made with previous dev versions.

Scott
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