Public share link leads to unintended search engine indexing in Adobe XD

Goal: Understand cached asset persistence after revoking a public Adobe XD share link

When a project is shared with the 'Anyone with the link' setting, the document can be accessed without authentication. If the link is later changed to 'Invite Only' or revoked, there is uncertainty about how long previously viewed assets remain reachable through direct‑cached URLs and whether an administrator can force immediate invalidation of those caches.

What factors influence the cache lifetime for assets served via a revoked public link? Is there a documented mechanism or admin action to purge the cache instantly, or must one rely on the natural expiration?