When the game rule doLimitedCrafting is enabled, a player can right-click on a campfire with a recipe ingredient for a campfire recipe, and have the campfire start cooking even though they do not have the recipe for it.

Potential solution:

• When a player right-clicks a campfire when it is lit, it checks if any of the campfire recipes known by said player take the held item as an ingredient. If a recipe exists, the item is placed on the campfire. If there is no matching recipe, nothing happens.
• When a campfire is lit from its unlit state, all items on it are dropped. (Currently, items remain on the campfire).