After generating a really huge and efficient collection of filters, I was disappointed to find that the rules were not saved ...

I hope that the impressive progress on saving searches will be carried through to saving search filters. I guess you will, since the interface is so complex, you wouldn't have bothered to make such a cool filter interface and not save them.

I only hope my mentioning this will encourage you to do it quickly! (or that someone will point out a glaringly obvious mistake I have made

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