On 8/30/21 14:00, Stefan Monnier wrote:
>
>> This sounds like a reasonable idea. If such a variable gets added to the
>> master branch I will happily test it out.
> Can you cook up a patch for it?

Cooked up (see attached), but it doesn't actually seem to work. My 
assumption is that `prev_event` is not set at the point where this 
executes; I have to confess I don't quite understand what will and won't 
set `prev_event`.

Perry