Updates an owned project. A request containing only remixAllowed and/or remixRoyaltyBps is accepted for draft or published source and legacy projects and affects only new remixes. Owners can set remixRoyaltyBps from 0 to 2500 (0% to 25%) or null to reset to the platform default. Other source edits must use the authoring endpoint. Legacy edits require draft status, except autoSwapsEnabled which can change after publish for HTML v2 projects. Setting status to live publishes a legacy project. Mixed requests must satisfy every field's restrictions.