Compositions not always correct

[koeleboe]

For example

https://api.irail.be/v1/composition/?id=4137 says there is one 1 desiro, but the realtime nmbs says 2 desiros. There are indeed 2 desiros (i'm on it :D). Moreover, for some reason, only the part from Leuven to Mechelen is shown in the call (and not the part from Mechelen to Ghent), but this does not affect the composition.

Ic 4136 has the same issue. In real time, there is only 1 desiro, but api says 2.

[Bertware]

Testing locally shows the correct composition for both trains, and in both cases the source has changed as well.
Seems like the composition was updated 2024-05-02 17:01:03, cache duration should probably be decreased on compositions in order to get these updates

[koeleboe]

Yeah, that makes sense, but weird that the composition is updated after the train arrived at the last station.