fields.Place place_error je vždy nastaven, ve výchozím stavu na ""

mo/web/fields.py

@@ -90,7 +90,7 @@ class Place(wtforms.StringField):
 
     place_loaded: bool = False
     place: Optional[db.Place] = None
-    place_error: str
+    place_error: str = ""
 
     def load_place(field) -> None:
         field.place = None