Exclude ignored people from followed tags when building stream-relation

This improves the main stream when you have less or inactive contacts
and ignored an active person that posts many posts with tags. When the
person is only removed after collecting all post ids, you don't see
posts with tags from other people.

lib/evil_query.rb

@@ -71,7 +71,7 @@ module EvilQuery
 
     def followed_tags_posts!
       logger.debug("[EVIL-QUERY] followed_tags_posts!")
-      StatusMessage.public_tag_stream(@user.followed_tag_ids)
+      StatusMessage.public_tag_stream(@user.followed_tag_ids).excluding_hidden_content(@user)
     end
 
     def mentioned_posts

spec/lib/evil_query_spec.rb

@@ -28,6 +28,18 @@ describe EvilQuery::MultiStream do
       expect(evil_query.make_relation!.map(&:id)).not_to include(public_post.id)
       expect(evil_query.make_relation!.map(&:id)).not_to include(private_post.id)
     end
+
+    it "doesn't include posts with tags from ignored users" do
+      tag = ActsAsTaggableOn::Tag.find_or_create_by(name: "test")
+      alice.tag_followings.create(tag_id: tag.id)
+      alice.blocks.create(person_id: eve.person_id)
+
+      bob_post = bob.post(:status_message, text: "public #test post 1", to: "all", public: true)
+      eve_post = eve.post(:status_message, text: "public #test post 2", to: "all", public: true)
+
+      expect(evil_query.make_relation!.map(&:id)).to include(bob_post.id)
+      expect(evil_query.make_relation!.map(&:id)).not_to include(eve_post.id)
+    end
   end
 end