Factorio Forums

When reading the train contents (example train has 100 plastic) it directly influences the trains station itself if you set the train limit to plastic.
So Instead of train limit 1, I get train limit of 101 (1 from combinator + 100 train content). I would be expected that the train content is not used directly by the train station as similar as in assembling machines:
Machine has copper cable in it but does not change the recipe to copper cable. If you would add both green chips and copper cable in the combinator it would change to copper cable. Version 2.0.39, Elevated Rails, Quality, Spage-Age

Thanks for the report however that's currently working as intended. Maybe some day one of the other developers might want to rework the logic to work closer to assembling machines but for now it works like it does.

Every instance of "read and write" at the same time has to be special-case handled in each entity along with tests to ensure everything is working correctly. In the train stop case, it was not deemed worth the time and effort to do so far.