use the is_model_attr_cached method rather than just checking for the attribute

Author: saponifi3d

src/sentry/workflow_engine/models/data_condition_group.py

@@ -8,6 +8,7 @@
 from sentry.backup.scopes import RelocationScope
 from sentry.db.models import DefaultFieldsModel, region_silo_model, sane_repr
 from sentry.db.models.manager.base import BaseManager
+from sentry.db.models.utils import is_model_attr_cached
 from sentry.workflow_engine.models.data_condition import DataConditionSnapshot
 
 
@@ -48,7 +49,7 @@ class Type(StrEnum):
 
     def get_snapshot(self) -> DataConditionGroupSnapshot:
         conditions = []
-        if hasattr(self, "conditions"):
+        if is_model_attr_cached(self, "conditions"):
             conditions = [cond.get_snapshot() for cond in self.conditions.all()]
 
         return {