Fixes query attribute not existing under strict mode

Author: daika7ana

src/Traits/ModelCaching.php

@@ -22,6 +22,11 @@ public function __get($key)
                 ?? 0;
         }
 
+        if ($key === 'query') {
+            return $this->query
+                ?? $this->newModelQuery();
+        }
+
         return parent::__get($key);
     }