Fortune tools do not consume durability when harvesting crops (such as carrots, potatoes, wheat, and beetroot) and nether wart despite the Fortune enchantment working on these. This makes it very overpowered to use Fortune tools on crops with no downside whatsoever.

This is also the case for small corals and Silk Touch tools.

This could also be intended to be consistent with the fact that blocks that are instaminable without a tool do not consume durability; however, the vast majority of these blocks are not affected by Fortune or Silk Touch.