For the purpose of this paragraph and section
8443, a child whose 22nd birthday occurs before July 1 or after August 31 of a calendar year, and while regularly pursuing such a course of study or training, is deemed to have become 22 years of age on the first day of July after that birthday. A child who is a student is deemed not to have ceased to be a student during an interim between school years if the interim is not more than 5 months and if such child shows to the satisfaction of the Office that such child has a bona fide intention of continuing to pursue a course of study or training in the same or different school during the school semester (or other period into which the school year is divided) immediately after the interim.