Это какая-то шизофрения на уровне языка. И ведь не единственный случай такой, тут еще нагуглил примеров:
- Fast: Can mean quick movement or lack of movement
- Cleave: Can mean to split something apart or to unite two things
- Dust: Can mean to add small particles to something or to remove small particles from something
- Finish: Can mean to complete something or to destroy something
- Fix: Can mean to repair or to break
- Garnish: Can mean to add (as with a salad) or to take away (as with a salary)
- Refrain: Can mean to stop or to repeat
- Clip: Can mean "attach" or "cut off"