There's nothing that repaints pages when an incrementally loading PDF loads more data or completes.
<rdar://127713604>
Pull request: https://github.com/WebKit/WebKit/pull/28318
Committed 278597@main (7208a15cb4af): <https://commits.webkit.org/278597@main> Reviewed commits have been landed. Closing PR #28318 and removing active labels.