What
Previously, approving an asset upload to an artifact with "always allow" covered every further upload to that artifact for the rest of the session. Now, a new check detects when the artifact has unread comments, and in that case the approval instead lasts only "until someone else comments on it again," rather than for the whole session.
Why
This limits how long a blanket upload approval stays valid when other people are actively commenting on the artifact, so a stale approval doesn't keep applying after someone else has weighed in.