Gracefully cancel superseded reconversion jobs on rapid saves

Shipped

16 ஏப்ரல், 2026 அன்று 3:59 PM UTC

Author

Kamo

Commit

2f05ab1

When a document is saved multiple times quickly, each save registers its ImgDat UUID in a ConcurrentHashMap. The async reconversion task checks this at 6 checkpoints (before start, after download, after PDF conversion, after PDF upload, before thumbnails, after thumbnail generation). If a newer save has replaced the expected ImgDat, the task exits immediately without writing stale results or orphaned records.