[Test failure] rclcpp/ test_publisher.intra_process_inter_process_mix_transient_local

[Yadunund]

Following #365, #317 no longer fails but we have another failure in test_publisher.

62: [ RUN      ] TestPublisher.intra_process_inter_process_mix_transient_local
62: [WARN] [1735376330.176345205] [rclcpp]: Calling set_on_new_intra_process_message_callback for subscription with IPC disabled
62: /home/yadunund/ros2_rolling/src/ros2/rclcpp/rclcpp/test/rclcpp/test_publisher.cpp:822: Failure
62: Expected equality of these values:
62:   executor.spin_until_future_complete(inter_callback_future, std::chrono::milliseconds(100))
62:     Which is: TIMEOUT (2)
62:   rclcpp::FutureReturnCode::SUCCESS
62:     Which is: SUCCESS (0)
62: 
62: [  FAILED  ] TestPublisher.intra_process_inter_process_mix_transient_local (211 ms)

[Yadunund]

This test was recently added to rclcpp: ros2/rclcpp#2708

[Yadunund]

I'm unable to reproduce this error after restarting the zenoh router. The router had been running for a long time and over the course of running tests across across rcl, rcl_lifecycle, rcl_action, test_communication, test_quality_of_service, rclcpp, rclcpp_components, rclcpp_lifecycle, rclcpp_action, and rclpy multiple times.

It feels like the router might have got into a weird state and hence was not handing the discovery of pub caches/querying subscribers. Fyi @JEnoch, @YuanYuYuan.

Closing this out for now.