"Cluster links" is missing some information

[lukebakken]

Previous issue #250

Environment -

• Branch master in rabbitmq-management
• OTP 20

Reproduction -

• Start up two nodes, and join into a cluster:

make RABBITMQ_NODENAME='rabbit@shostakovich' run-broker
make RABBITMQ_NODE_PORT=5673 RABBITMQ_SERVER_START_ARGS='-rabbitmq_management listener [{port,15673}]' RABBITMQ_NODENAME='rabbit2@shostakovich' run-broker
rabbitmqctl -n rabbit@shostakovich stop_app
rabbitmqctl -n rabbit@shostakovich join_cluster rabbit2@shostakovich
rabbitmqctl -n rabbit@shostakovich start_app

• Browse to localhost:15672, click on "Overview", click on one of the nodes in the cluster, and expand "Cluster links".
• Expect to see data in Local Address, Local Port, Remote Address, Remote Port, but data is empty: