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why apply_upgrade return two entities ?
https://forums.factorio.com/viewtopic.php?t=132097
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why apply_upgrade return two entities ?
Posted:
Wed Dec 17, 2025 3:25 pm
by
Stargateur
Why
apply_upgrade
return two entities ?
Re: why apply_upgrade return two entities ?
Posted:
Wed Dec 17, 2025 3:49 pm
by
Rseding91
Because it may upgrade both ends of an underground belt.