I tried a simple use case.
Used the turtlesim example : published messages from `turtle_teleop_key` to `turtlesim_node` and recorded the data in a `.bag` file. Now when i play the rosbag file using `rosbag play fileName`, I can also publish the messages from the `turtle_telep_key` which changes the movement of the turtle ?
1. Is it allowed ? Shouldnt publishing messages be blocked during playing a bag file ?
2. Or is it an application problem and I must prevent it from my end ?
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