prevent uninit bytes in coordinates, for CoordinateField users
prevent uninit bytes in coordinates, for CoordinateField users

YetAnotherMinion/core,YetAnotherMinion/core,YetAnotherMinion/core,YetAnotherMinion/core,yangf4/core,yangf4/core,yangf4/core,yangf4/core,YetAnotherMinion/core,yangf4/core