Comment 231 for bug 883459

(In reply to Tristan Miller from comment #207)
> (In reply to Árpi from comment #206)
> > I did get numerous duplicates when I installed kmail 5.7.x (I think, x=3),
> > that came with Ubuntu 18.04. Then I started using the workaround from
> > comment #118.
>
> Lucky you; that workaround did nothing for me.
>
> Is there some sort of bug bounty program for KDE? If so I wouldn't mind
> chipping in €20 or so towards a fix for this issue.

I checked my filters; what I am doing is not exactly as described in comment #118, but instead, I added an extra action, to execute
/bin/sleep 1
to each of my filters. Since then, no duplicates.