Issue about stereo camera info

[YoungCapta1n]

Describe the bug
I am trying the ros example [https://github.com/osrf/vrx/wiki/tutorials-ExampleVrx], and print the stereo camera info, as shown in the following figure

Expected behavior
According to docs [https://docs.ros.org/en/melodic/api/sensor_msgs/html/msg/CameraInfo.html] for stereo pair, the fourth column of projection matrix of each camera should be different.

To Reproduce
List the steps to reproduce the problem:
rostopic echo /wamv/sensors/cameras/front_right_camera/camera_info
rostopic echo /wamv/sensors/cameras/front_left_camera/camera_info

System Configuration:

• OS: [e.g. Ubuntu 20.04]
• ROS Version: [e.g. ROS 1, Noetic]