FIX: post counts in user stats when changing post owner

lib/post_revisor.rb

@@ -290,9 +290,11 @@ class PostRevisor
       private_message = @post.topic.private_message?
 
       prev_owner_user_stat = prev_owner.user_stat
-      prev_owner_user_stat.post_count -= 1
-      prev_owner_user_stat.topic_count -= 1 if @post.is_first_post?
-      prev_owner_user_stat.likes_received -= likes if !private_message
+      unless private_message
+        prev_owner_user_stat.post_count -= 1 if @post.post_type == Post.types[:regular]
+        prev_owner_user_stat.topic_count -= 1 if @post.is_first_post?
+        prev_owner_user_stat.likes_received -= likes
+      end
       prev_owner_user_stat.update_topic_reply_count
 
       if @post.created_at == prev_owner.user_stat.first_post_created_at
@@ -302,9 +304,11 @@ class PostRevisor
       prev_owner_user_stat.save!
 
       new_owner_user_stat = new_owner.user_stat
-      new_owner_user_stat.post_count += 1
-      new_owner_user_stat.topic_count += 1 if @post.is_first_post?
-      new_owner_user_stat.likes_received += likes if !private_message
+      unless private_message
+        new_owner_user_stat.post_count += 1 if @post.post_type == Post.types[:regular]
+        new_owner_user_stat.topic_count += 1 if @post.is_first_post?
+        new_owner_user_stat.likes_received += likes
+      end
       new_owner_user_stat.update_topic_reply_count
       new_owner_user_stat.save!
     end

spec/services/post_owner_changer_spec.rb

@@ -131,19 +131,43 @@ describe PostOwnerChanger do
         expect(user_a_stat.likes_received).to eq(1)
       end
 
+      it "handles whispers" do
+        whisper = PostCreator.new(
+          editor,
+          topic_id: p1.topic_id,
+          reply_to_post_number: 1,
+          post_type: Post.types[:whisper],
+          raw: 'this is a whispered reply'
+        ).create
+
+        user_stat = editor.user_stat
+
+        expect {
+          described_class.new(
+            post_ids: [whisper.id],
+            topic_id: topic.id,
+            new_owner: Fabricate(:admin),
+            acting_user: editor
+          ).change_owner!
+        }.to_not change { user_stat.reload.post_count }
+      end
+
       context 'private message topic' do
         let(:topic) { Fabricate(:private_message_topic) }
 
         it "should update users' counts" do
           PostAction.act(p2user, p1, PostActionType.types[:like])
 
-          change_owners
+          expect {
+            change_owners
+          }.to_not change { p1user.user_stat.post_count }
 
           expect(p1user.user_stat.likes_received).to eq(0)
 
           user_a_stat = user_a.user_stat
           expect(user_a_stat.first_post_created_at).to be_present
           expect(user_a_stat.likes_received).to eq(0)
+          expect(user_a_stat.post_count).to eq(0)
         end
       end