Regolith tiles are not falling through open vertical doors.

When vertical bunker doors are open, bulk tiles do not fall through, while they do for horizontal doors or liquid tiles.

Is this a bug or a feature?

I am trying to limit meteors directions for a single blaster on meteor showers using vertical doors, while keep sky open for sensors when it's safe. And when meteor hits this vertical bunker door I need to manually dig that regolith tile on the top instead of do it on the bottom with robo-miner.

Thank you!