Nick Craig-Wood 0914ec316c b2: fix multipart upload retries #1733
Prior to this fix we were uploading 0 length bodies if a retry was
needed on a multipart upload chunk.  This gave this error `http:
ContentLength=268435496 with Body length 0`.

Fix by remaking the hash appending reader in the Call loop.  This is
inefficient in the face of retries, but these are uncommon.
2017-12-13 10:11:20 +00:00
..