If a mercantile agent is entrusted as a mercantile agent with the possession of goods or documents of title to goods—
(a) a sale, pledge or other disposition of the goods made by the mercantile agent in the ordinary course of business of a mercantile agent to a person acting honestly, and without notice that the mercantile agent does not have authority to make the disposition, is, subject to this part, as valid as if the mercantile agent were expressly authorised by the owner of the goods to make the disposition; and
(b) a sale, pledge or other disposition of the goods to a person that would have been valid if the entrusting had continued is valid, despite the ending of the entrusting, unless the person had, at the time of the disposition, notice of the ending of the entrusting.