Hiding organic group membership (exhibits) in user profile.
Added rule to automatically subscribe all users (except user 1) to an exhibit (organic group) when the exhibit is created - if users are not group members, or are group members but don't have group permissions entityreference_prepopulate returns false when validating the exhibit group, preventing users from adding content to the group (this was not always the case and may have arisen after enabling og_access and/or og_context modules @see ->validateReferencableEntities() in entityreference_prepopulate_get_values).