Issue description
I have two trains next to each other, in different stations. One is a fuel train, servicing the line "Fuel Supply Run". The other is a coal train, waiting for a station to open up. As you can see in the screenshot, the selected train (clearly highlighted, also see red circle) is the fuel train with 4 tanker wagons, unloading. The composition shown is that of the coal train in the background. The selected line is clearly the correct one corresponding to the fuel train though. If I click on the button to (un)group the train cars, that fixes the display and I see the tankers with diesel/hydrogen.

Reproduction steps
I don't know how reproducible it is, but I did attach a savegame of the exact time the screenshot was taken.
Game version and build number
v0.8.2a (b552)
Operating system
Linux
Attachments
Bugreport for train composition.save