misleading mitmproxy dumps when 2 workers communicate

When we dump the packages that passed through the proxy, the packages coming from coordinators and other workers gets mixed up. If the tcp packages did not originate from the worker, we assume that it came from the coordinator. The logs during a logical replication may be misleading.

This problem may be originating from the statements like the following:
https://github.com/citusdata/citus/blob/a54f9a6d2c62bfcd84de06cbff55edff5bd76d88/src/test/regress/mitmscripts/fluent.py#L276