Bug when the quest \"lead by example\" (Fallout 4)

Good afternoon. This problem. The brotherhood of steel in Fallout 4 is the quest setting an example in which the sweep area is given a squire of the brotherhood. After completing the quest, the squire remained with me and follows me everywhere. The kid is very tired already and talk to him (to let go) does not work. Please tell me how to use codes or something to get rid of it!