A wholesaler permittee shall not sell alcoholic liquor to any person holding a temporary liquor permit for a noncommercial entity issued under section 30-35. The holder of a temporary liquor permit for a noncommercial entity issued under section 30-35 shall purchase alcoholic liquor only from permittees holding package store permits issued under subsection (b) of section 30-20. The provisions of this section shall not apply to the sale of beer in kegs or donations of any beer, spirits or wine to which a wholesaler permittee holds distribution rights.