Petrol generator insufficient resources when mixing fuel

EnergyGenerator is consistently assuming just one fuel and finds it with this.storage.FindFirst(inputItem.tag);

This happens both in IsConvertible (the cause of this bug... I think) and in EnergySim200ms, where the meter display assumes only one element when counting (display bug only).

EnergySim200ms removes fuel from storage by calling this.storage.ConsumeIgnoringDisease, which I think is ok. It looks like it loops through the list until it consumed enough mass. It's just not called if IsConvertible says "not enough fuel".

I better keep an eye on this one. I have a mod with a modded version of EnergyGenerator (hence my interest) and I must have copy pasted this bug.