fixes #1695, post comment count is incorrectly calculated based on al…

…l posts, including events

src/User/User.php

@@ -753,7 +753,7 @@ public static function getNotificationPreferenceKey($type, $method)
      */
     public function refreshCommentCount()
     {
-        $this->comment_count = $this->posts()->count();
+        $this->comment_count = $this->posts()->where('type', 'comment')->count();
 
         return $this;
     }