[13.20] Bot-based delivery awakens inserter

[XKnight]

Testing build: furnaces +300% speed, input filtered inserters with iron ore/copper ore (activated in the same moment), output fast inserters.
After inserting 3 iron ore filtered inserters will be switched to copper. After copper - to iron and again from the beginning.
Signals from output inserters is compared each tick and if it is not equal lamps will be switched on.

Simple build: everything works as expected:

Video

During smelting lamps were switched off.

Advanced build: now I've added 100k stone in requester chest.

Video

During smelting lamps were switched on.

Why lamps are flickering?
In my opinion this happens because each bot-based delivery changes input chest contents and awakens all sleeping inserters, as a result they might start rotating 1 tick earlier. In other words game optimisation that was added (introducing "sleeping" state) affects game mechanic.

Expected behaviour: results should be the same in both experiments.

[Rseding91]

The sleeping inserter mechanics have existed since before 0.10. What you're describing is expected behavior and is unlikely to ever change.

[XKnight]

The sleeping inserter mechanics have existed since before 0.10. What you're describing is expected behavior and is unlikely to ever change.

This means I can connect flickering combinator to filter inserter (set filter mode) and their rotation time will be 1 tick less. This is nice.