The bug
Using a fire charge on a non-lit campfire does not ignite the campfire, but does consume the fire charge.
Using a fire charge on a non-lit campfire does not ignite the campfire, but does consume the fire charge.
Confirmed
campfire, fire_charge
Minecraft 19w02a, Minecraft 19w03a, Minecraft 19w04b, Minecraft 19w05a, Minecraft 19w06a, Minecraft 19w07a
Minecraft 19w08a
Retrieved
It would be hard to start a fire with wet wood... you'd have to put water on the fire in order to make it unlit. This seems intended.