GH-3509: Fix if test in previous commit

Caused interceptor to be skipped.

**cherry-pick to 5.4.x**

* Fix race in new tests

* Remove overloaded conn id in test interceptor.

spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpNetClientConnectionFactory.java

@@ -57,7 +57,7 @@ public class TcpNetClientConnectionFactory extends
 					this.tcpNetConnectionSupport.createNewConnection(socket, false, isLookupHost(),
 					getApplicationEventPublisher(), getComponentName());
 			TcpConnectionSupport wrapped = wrapConnection(connection);
-			if (wrapped.equals(connection)) {
+			if (!wrapped.equals(connection)) {
 				connection.setSenders(getSenders());
 				connection = wrapped;
 			}