[PATCH 1/2] storage: Add "filtered" option, to store based on the filter's decision

[Christoph Biedl]

Julien ÉLIE wrote...

> I've gone ahead, and implemented the following rule: if all the storage
> classes have this new filtered key set to false, filtered articles are
> stored in the same storage class as accepted articles.  It is only when at
> least one storage class has this key set to true than filtered articles and
> accepted articles are no longer stored mixed together in any storage class.

This seems sane, I read your description as "following the principle of
least surprise". Although I'll need another coffee to think through the
logic here.

Thanks for catching this not-so-corner case which just does not exist in
my installations.

    Christoph