Given that a template has multi-select that has A, B and C as value. Currently, if a user has attached an Instance of a Template to a file, on that Instance, a multi-select field has the value of “B”. If the Template is updated so that multi-select option “B” is changed to “D”, then that change will also affect the value in the Instance (and all other Instances of the Template). Because the value of “B” no longer exists as a valid option on the Template, Box cannot keep that value in the Instance. Similarly, if the option “B” was removed from the Template, the value would be removed from the Instances. We would like to keep the already-populated value although the template changes.