[core] Destroying TCP subscriber destroys all tcp communication for that topic on that process #2453
Description
Problem Description
When I have one TCP publisher, and two TCP subscribers, where both subscribers are in the same process, when I then destroy one subscriber, the other subscriber no longer receives data.
How to reproduce
https://github.com/eclipse-ecal/ecal/tree/feature/multiple-subscriber-tcp-fail contains a testcase to reproduce the bug.