mark the model as loaded once loaded

source/model/base/BaseModel.py

@@ -64,6 +64,9 @@ class BaseModel(abc.ABC):
         # declare ourselves as the currently loaded model
         self.manager.current_loaded_model = self
 
+        # mark the model as loaded
+        self._loaded = True
+
     @abc.abstractmethod
     def _load(self):
         """