Do not cache parametrized models when in the process of parametrizing another model

Viicos · Viicos · commit c6bff2e9d6ca · 2024-10-12T17:30:22.000+02:00
diff --git a/pydantic/main.py b/pydantic/main.py
@@ -805,7 +805,8 @@ def __class_getitem__(
                 submodel = _generics.create_generic_submodel(model_name, origin, args, params)
 
                 # Update cache
-                _generics.set_cached_generic_type(cls, typevar_values, submodel, origin, args)
+                if len(_generics.recursively_defined_type_refs()) == 1:
+                    _generics.set_cached_generic_type(cls, typevar_values, submodel, origin, args)
 
         return submodel
 
