Merge pull request #66 from process0/process0-dont-return-None-for-BaseModel-type

Return registry placeholder for `BaseModel` when resolving type

Author: necaris

graphene_pydantic/converters.py

@@ -208,6 +208,7 @@ def find_graphene_type(
         # we can put a placeholder in and request that `resolve_placeholders()`
         # be called to update it.
         registry.add_placeholder_for_model(type_)
+        return registry.get_type_for_model(type_)
     # NOTE: this has to come before any `issubclass()` checks, because annotated
     # generic types aren't valid arguments to `issubclass`
     elif hasattr(type_, "__origin__"):