What to do about multiple nested schemas warning?

Originally reported here: https://github.com/Nobatek/flask-rest-api/issues/57 - see there for more input

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I'm using marshmallow v3-rc5 and using two-way nesting
Using this technique I get the following error if I attempt to use something like @blp.response(CreatorSchema(many=True, exclude=('follower_count',))):

/Users/cyber/.virtualenvs/luve-pim5aQIP/lib/python3.7/site-packages/apispec/ext/marshmallow/common.py:143: 
UserWarning: Multiple schemas resolved to the name Creator. The name has been modified. Either manually add each of the schemas with a different name or provide a custom schema_name_resolver.

and see multiple versions of the schema in swagger (Creator, Creator1).

If I remove the exclude arg to my schemas and make new schemas then everything works perfectly. Something about exclude causes it to think there are multiple versions of the schema and it all explodes.

Start at the @blp.response entry point and inspect how marshmallow schemas using exclude are passed into apispec's schema resolution. Reproduce the two-way nesting case from the issue, then verify that Swagger/OpenAPI output no longer creates duplicate Creator schemas.