Edge case: Ignore response configs with empty .keys

src/ert/storage/local_ensemble.py

@@ -311,8 +311,8 @@ def _has_response(_key: str) -> bool:
             return _has_response(key)
 
         return all(
-            _has_response(response)
-            for response in self.experiment.response_configuration
+            _has_response(response) if len(config.keys) > 0 else True
+            for response, config in self.experiment.response_configuration.items()
         )
 
     def is_initalized(self) -> List[int]:

tests/ert/unit_tests/storage/test_local_storage.py

@@ -815,8 +815,10 @@ def save_summary(self, model_ensemble: Ensemble, summary_data):
         model_smry_config = next(
             config for config in model_experiment.responses if config.name == "summary"
         )
-        model_smry_config.keys = sorted(response_keys)
-        model_smry_config.has_finalized_keys = True
+
+        if not model_smry_config.has_finalized_keys:
+            model_smry_config.keys = sorted(response_keys)
+            model_smry_config.has_finalized_keys = True
 
     @rule(model_ensemble=ensembles)
     def get_responses(self, model_ensemble: Ensemble):
@@ -880,7 +882,11 @@ def create_ensemble_from_prior(self, prior: Ensemble):
         iens = 0
         if (
             list(prior.response_values.keys())
-            == [r.name for r in model_experiment.responses]
+            == [
+                r.name
+                for r in model_experiment.responses
+                if (r.has_finalized_keys and len(r.keys) > 0)
+            ]
             and iens not in prior.failure_messages
             and prior_ensemble.get_ensemble_state()[iens]
             != RealizationStorageState.PARENT_FAILURE