ROS2 spacenav_node doesn't publish button values on to /spacenav/joy

[MeticulousFishFrier]

After fixing my ROS2 spacenav_node install with the fix in issue #221, I noticed that the button values of the space mouse are not published on to the /spacenav/joy topic. Attached below is an example echo of the topic. All the axes values are correct, but no button values are shown.

[stefanscherzinger]

I ran into this a few days ago. The buttons are actually published, but the default frequency of 1Khz floods them in the terminal. Here's a fix that restores the previous ROS1 behavior.

[JWhitleyWork]

@MeticulousFishFrier Please test out the new behavior and re-open this issue if it is not resolved.