This is somewhat related to this (https://forum.simutrans.com/index.php/topic,20299.msg191413.html) thread.
When starting a new map while another one with AI players activated is running, the "active player" status is not reset.
To reproduce the bug:
- Load a map with AI players active or start a new map and activate AI players
- Start a new map using the "new world" dialogue
- Close the game
- Reload previous save
- Compare the two saves
In my opinion, settings.player_active is completely useless and should be removed. The active-state of each player is stored within player_t anyway. (also settings.player_type is close to useless)
removed this variable in r9260