Fix bug in KinematicUnitGui controlling Torso Joint of ARMAR-DE to 0 when reconnecting

See https://gitlab.com/h2t/organization/software-organization/-/issues/178

assigned to @RainerKartmann

I could reproduce the error in the simulation:

1. Start CeBit simulation
2. Open KinematicUnitGui
3. Drive torso of ARMAR-6 down to -365
4. Stop the RobotUnitSimulationApp
5. Start the RobotUnitSimulationApp
6. Double click the torso joint in the kinematic unit gui
7. => Torso joint is instantly set to 0 (up for ARMAR-6, would be down for ARMAR-DE)

created branch 73-fix-bug-in-kinematicunitgui-controlling-torso-joint-of-armar-de-to-0-when-reconnecting to address this issue

mentioned in merge request !241 (merged)

added bug label

closed

mentioned in commit dc5ae6b1

reopened

closed

Follow up: #93