Client appears to not send token on connection request when user credentials are present

[glarrick757]

Observed behavior

When attempting to connect via decentralized auth callout with both a token and user_credentials, the client appears to only pass the user_credentials.

Expected behavior

The connection request should include both the token and user_credentials.

Server and client version

Python Client Version: 2.10.0
Nats Server Version: 2.10.27

Host environment

No response

Steps to reproduce

• Setup a NATS server with a decentralized auth callout service as described here
• In the auth callout service, attempt to extract the token from incoming request claims
• Using the python client, attempt to connect to the NATS server:

  nc, err := nats.Connect(
    "my_server_address",
    nats.UserCredentials("sentinel_creds"),
    nats.Token("my_secret_token")),
  )

• Observe that the token extracted by the auth callout service is empty