22.5. Where, for the purpose of determining, under sections 22.2 to 22.30, if a supply is made in Québec, reference is made to the ordinary location of property and, from time to time, the supplier and the recipient mutually agree upon what is to be the ordinary location of the property at a particular time, that location is deemed, for the purposes of sections 22.2 to 22.30, to be the ordinary location of that property at the particular time.