Enhanced ExecutionContext to keep track of the execution flow

core/concept.py

@@ -98,9 +98,26 @@ class Concept:
 
         # check the attributes
         for prop in PROPERTIES_TO_SERIALIZE:
-            if getattr(self.metadata, prop) != getattr(other.metadata, prop):
-                # print(prop) # use full to know which id does not match
-                return False
+            # print(prop) # use full to know which id does not match
+            my_value = getattr(self.metadata, prop)
+            other_value = getattr(other.metadata, prop)
+            if isinstance(my_value, Concept) and isinstance(other_value, Concept):
+                # need to check if circular references
+                if id(self) == id(other):
+                    continue
+
+                sub_value = getattr(other_value.metadata, prop)
+                while isinstance(sub_value, Concept):
+                    if id(self) == id(sub_value):
+                        return False  # circular reference
+                    sub_value = getattr(sub_value.metadata, prop)
+
+                if my_value != other_value:
+                    return False
+
+            else:
+                if my_value != other_value:
+                    return False
 
         # check the props (Concept variables)
         for var_name, p in self.props.items():