For performance reasons, we now create cache entries outside of
transactions, which may leave behind multipart uploads if the process is
interrupted.
ref: 9f2abaf176
While Cloudflare automatically aborts incomplete uploads after 24 hours
(and we typically rely on that), our E2E tests delete the bucket
immediately after the test completes. To prevent deletion failures in
tests, we now explicitly cancel any in-progress uploads before deleting
the bucket.
1ce4e1930a