There are situations in which you may want to set or change an attribute on a content unit. For example, let's suppose that ISO content units had a description attribute. You may want to change the description after the ISO has been uploaded. Of course, not all attributes should be mutable. For example, you wouldn't want to change the checksum. So, the ask is: * Provide a way for an Importer to mark attributes as mutable * Provide an API for modifying mutable attributes * Provide a method in the admin cli for modifying mutable attributes
Moved to https://pulp.plan.io/issues/224