Robot is moving in Gazebo when no controller is started about panda_simulator

[justagist]

See #25 (comment) first.

The EffortJointInterface now works as expected, after Gazebo gets initialized and before the controller is loaded robot moves weirdly. Wouldn't it be expected that the robot stays still before any controller is initialized?

This could be because the simulator still depends heavily on franka_ros_interface which requires gazebo to use the custom PandaRobotHWSim hardware interface. By adding the flag use_gazebo_control:=true, this is disabled and may provide weird behaviour. You could instead use gazebo_panda which does not depend on franka_ros_interface at all, and uses the default gazebo hw interface.
Also, I have noticed that sometimes in gazebo, starting some controllers when launching any robot simulation seems to cause weird motion in the beginning, but this does not happen when switching to this controller after the simulator is fully loaded.