Hotfix 2.3.9

FIX: Impossible to upgrade Signal to Auto Signal in Departure Sensor Tutorial
FIX: NRE in ReuseShuntingCommand execution in single player
FIX: Routing Sensor Configuration was not refreshed after Signal was selected
FIX: Train composition was cleared by the first modification in single-player mode
FIX: Typo in "Last passe<n>ger did not make it on time"