Receiving a pumpkin for the first time unlocks the recipe for jack o' lanterns

What I expected to happen was...:
Unlocking only recipes that use uncarved pumpkins

What actually happened was...:
Unlocked recipes that use uncarved pumpkins as well as the jack o' lantern recipe

Steps to Reproduce:
1. Pick up an uncarved pumpkin before you have picked up a carved pumpkin in a world
2. Unlock jack o' lantern recipe