[10.0] Avoid crash in base_optional_quick_create during migration (#1222)

base_optional_quick_create/models/ir_model.py

@@ -27,7 +27,7 @@ class IrModel(models.Model):
         method_name = 'name_create'
         for model in self:
             model_obj = self.env.get(model.model)
-            if model.avoid_quick_create:
+            if model.avoid_quick_create and model_obj is not None:
                 model_obj._patch_method(method_name, _wrap_name_create())
             else:
                 method = getattr(model_obj, method_name, None)