Train Batch Unloading aborts when train reaches a junction

Issue description

If a long train is batch unloading at a shorter train station and reaches a junction right after the train stations exit, then the train aborts unloading and continues with the next train stop in its schedule.

Reproduction steps

1. Long train arrives at shorter train station
2. Starting batch unloading
3. Train drives forward for next batch but reaches entrance of junction.
4. Batch unloading aborts, train continues with next stop in schedule.

I would expect that train would choose the right junction exit (to drive to next train station in schedule) but stops then again to continue batch unloading until all is unloaded.

Game version and build number

v0.7.5c (b455)

Operating system

Windows

Attachments

Unfortunately, this is working as intended and can't be solved because the next target station is determined by the state of the train, which is not clear until the train gets (un)loaded and is on its way. One can construct examples where the train would always make a wrong decision. That's why it is explicitly explained in the game and forbidden.