A staff member can hide another staff's member's post by flagging

app/models/post_action.rb

@@ -542,7 +542,8 @@ SQL
   end
 
   def self.auto_hide_if_needed(acting_user, post, post_action_type)
-    return if post.hidden || post.user.staff?
+    return if post.hidden?
+    return if (!acting_user.staff?) && post.user.staff?
 
     if post_action_type == :spam &&
        acting_user.has_trust_level?(TrustLevel[3]) &&

spec/models/post_action_spec.rb

@@ -382,7 +382,7 @@ describe PostAction do
       expect(post.spam_count).to eq(0)
     end
 
-    it "will not auto hide staff posts" do
+    it "will not allow regular users to auto hide staff posts" do
       mod = Fabricate(:moderator)
       post = Fabricate(:post, user: mod)
 
@@ -398,6 +398,22 @@ describe PostAction do
       expect(post.hidden_at).to be_blank
     end
 
+    it "allows staff users to auto hide staff posts" do
+      mod = Fabricate(:moderator)
+      post = Fabricate(:post, user: mod)
+
+      SiteSetting.flags_required_to_hide_post = 2
+      Discourse.stubs(:site_contact_user).returns(admin)
+
+      PostAction.act(eviltrout, post, PostActionType.types[:spam])
+      PostAction.act(Fabricate(:admin), post, PostActionType.types[:spam])
+
+      post.reload
+
+      expect(post.hidden).to eq(true)
+      expect(post.hidden_at).to be_present
+    end
+
     it 'should follow the rules for automatic hiding workflow' do
       post = create_post
       walterwhite = Fabricate(:walter_white)