Subsequent sentence of corrective training, preventive detention or imprisonment
6.—(1)  If any person, while under supervision under regulation 4, or after his recall to a reformative training centre under regulation 5, is sentenced to corrective training or reformative training, his original sentence of reformative training shall cease to have effect.
(2)  If any person, while under supervision under regulation 4, or after his recall to a reformative training centre under regulation 5, is sentenced to imprisonment, any period for which he is imprisoned under that sentence shall count as part of the period for which he is liable to detention in a reformative training centre under his original sentence.