fix for 3615, for v3
fix for 3615, for v3

arshaw/fullcalendar,fullcalendar/fullcalendar,oleg-babintsev/fullcalendar,arshaw/fullcalendar,arshaw/fullcalendar,oleg-babintsev/fullcalendar,arshaw/fullcalendar,fullcalendar/fullcalendar,fullcalendar/fullcalendar,fullcalendar/fullcalendar,oleg-babintsev/fullcalendar