ra-data-graphql saves rejected promise as introspection data

[dannyan2014]

If an initial introspection query fails, a rejected promise is kept and it is returned as a subsequent introspection query response.

What you were expecting: ra-data-graphql to refetch introspection schema on a subsequent try after failure.

What happened instead: ra-data-graphql keeps returning a rejected promise and introspection schema can't be fetched again until a browser refresh.

Steps to reproduce:

• Allow the initial introspection query to fail (i.e. a token expiration error).
• Retry with a valid request (i.e. with a new token) without refreshing the browser.

Related code: Inserting await in line 26 of introspection.ts solved the issue for us:

introspectionPromise = await runSchemaIntrospection(client, options);

[bgdtc]

same problem but inserting an await there didn't fix my problem