bug#30182: Update

[martin rudalics]

>  > So I'm still unsure what is going on here.  But if indeed the above
>  > scenario somehow ends up calling Lisp from the async redisplay,
>  > wrapping the call to Fcopy_sequence in timer_check with block_input
>  > and unblock_input should solve the problem, right?
>
> But we can't do that, right?  Users should be able to cancel it.

I misread your lines.  Wrapping that call should indeed solve the
problem.

martin