added some comments explaining the reason for the length reset
added some comments explaining the reason for the length reset

jeanleflambeur/silkopter,jeanleflambeur/silkopter,jeanleflambeur/silkopter,jeanleflambeur/silkopter,jeanleflambeur/silkopter,jeanleflambeur/silkopter,jeanleflambeur/silkopter