Bug Report: Stacked fuel produces no ash on Factorio 2.1
On Factorio 2.1, stacked Pyanodon fuels (stacked via Deadlock) no longer produce ash (burnt_result) when burned, while non-stacked fuels still do. This worked fine on 2.0.
Environment: Factorio 2.1, pypostprocessing 3.1.2, deadlock-beltboxes-loaders-continued, DeadlocksStackingForPyanadon-continued.
Repro: Stack a fuel that normally yields ash (e.g. coal) → burn it → no ash produced. Burn the unstacked version → ash produced.
