BUG: Feeds screen filtered by category not refreshed after feed removed from category

To reproduce:

1. Create a category with some feeds
2. Filter the Feeds screen to that category
3. Long touch a feed, touch Feed categories, uncheck the category, and touch return arrow back to the Feeds screen

What happens: Feed just removed from the Category is still shown.

What should happen: Feed should disappear from Feeds screen filtered by that category.