Bug report

Required Info:

Operating System: Ubuntu 22.04
ROS2 Version: Humble
Version or commit hash: ead48a9
Package: nav2_lifecycle_manager

Description of the Bug

When the lifecycle manager's pause method is called, a diagnostic status of ERROR is published with the message "Nav2 is inactive". We have a robot with a few states, where we want nav2 to be paused, and I don't see why the paused state would be an error state, so I wished to ask if this is the wanted behavior for publishing diagnostics.

Expected behavior

Navigation nodes could be paused through lifecycle manager without error diagnostics.

Actual behavior

Error diagnostic is published when navigation nodes are paused through lifecycle manager.