The bug

Setting the gamerule doLimitedCrafting to true does not stop players from crafting unknown recipes.

Steps to reproduce

1. Create new world
2. Set the gamerule to true

   /gamerule doLimitedCrafting true
   

3. Collect some resources to unlock some recipes
4. Take the unlocked recipes

   /recipe take @a *
   

5. Try to craft the recipe