[1.0.0] Fluid Mixing at train station after sending incorrect train

[deef0000dragon1]

A new player I am helping somehow managed to mix petrol and crude in adjacent pipes at one of his train stations.
This may be a duplicate of 88139, but I dont think that it is as it is a single fluid station, and the fluid actually got into the pipes.
The actual mixing was not observed, but we believe that it was caused by an incorrect train getting sent to the station when the crude was low, but we haven't be able to confirm or duplicate.

[Loewchen]

This is not a bug.