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This allows grains to retrieve up-to-date profile information on their users, even for users who have not visited the grain in a long time, and even for users who have never visited the grain at all (as may happen if the grain powerbox-requests an identity).
After this change, a grain can have a very simple user database consisting of a map from identity ID to Identity sturdyref, where
SandstormApi.restore()
andIdentity.getProfile()
are called whenever a particular user's profile is needed.I have tested this change on a branch of the Collections app that implements an "added-by" column.