FlyWithFood

Added config. option to "force" players to go down when they try to fly without enough food. By mashing spacebar they could continue flying. This fixes it. Please regenerate your config file (by deleting it) or add the following in the options.drainHunger section:

options:
  drainHunger:
    # It is possible to stay in air longer than usual
    #   even over the fly limit with continuous spacebar mashing
    # Set this to true to "punish" this by forcing players to go down
    # This also prevents players from jumping 2 blocks without food
    #   (they can still jump 1.5 blocks high though)
    punishCheatyFlyAttempts: true

Players can jump higher then usual when they have the flight capability, even if they lack food to fly. It is a feature.