(This is not an issue, but rather a suggestion)
Instead of making campfires light other campfires nearby, could you make it so that if you are holding a stick and you click a lit campfire (or any fire) with the stick, it lights the end of the stick on fire for a duration of time (also extinguishable by rain or clicking water with the lit stick), and if you click an unlit campfire with the lit stick, it lights the unlit campfire?