> Also, I've tried to group all the commands in a single file, but
> without success.  It seems they really need to be in different
> scripts, possibly in different contexts (legacy vs Vim9).

The location of the crash is where it's dealing with script-local
variables that were declared inside a block.  So yes, the script matters
very much.  Look out for any "var" inside a block.


> I forgot to mention that when Vim is started with the previous shell
> command, it gives these errors:
> 
>     Error detected while processing /home/user/.vim/plugin/fugitive.vim:
>     line    2:
>     E10: \ should be followed by /, ? or &
>     line    3:
>     E10: \ should be followed by /, ? or &
> 
> Not sure why.  I ignore them by pressing Enter.

This indicates line continuation with a backslash is used in compatible
mode.  'cpo' should be set to the Vim value.


> This in `~/.vim/plugged/vim-cmdline/plugin/cmdline.vim`:
> 
>     vim9
>     au CmdlineLeave : timer_start(0, () => execute('au SafeState * ++once #'))

This should not have any effect.  Does the crash still happen if you
remove this?

I don't see another hint, thus I hope you can find out more.


-- 
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