dillard
fe7ad9b4b5
verifyBlob() caught every exception from loading a blob and counted it as a failed (corrupted or tampered) blob, so a transient network error during a deep verify over WebDAV looked like data corruption. Read the range separately, retry it, and report a read that keeps failing as unreadable with its error; only a blob that was read but does not decrypt or match its id counts as failed.