CBLPusher bad_request error 400 Missing digest in stub attachment

[Ibrahim]

Hi, I see an error that frequently appears from the CBLPusher, which causes the document not to be synced with the syncgateway

```

WARNING: CBLRestPusher[https://xxxxx.xxxxx.com:443/xxxx]: _bulk_docs got an error: {

    error = "bad_request";

    id = "contact:A1BB65C1-DC31-43F9-A1B3-9935CE6B6DCC";

    reason = "Missing digest in stub attachment \"small_picture:C2A50F35-BAC4-4CB7-9720-F8B5C55C1CD0\"";

    status = 400;

}

```

i checked the `_attachments` for that document and found that the digest for `small_picture:C2A50F35-BAC4-4CB7-9720-F8B5C55C1CD0` exists

whenever this error appears, i see this one also:

```

Domain=CBLHTTP Code=400 "400 bad_request" UserInfo=0x7fd437b233c0 {NSURL=https://xxxxx.xxxxx.com:443/xxxx/contact:A1BB65C1-DC31-43F9-A1B3-9935CE6B6DCC, NSLocalizedFailureReason=bad_request, NSLocalizedDescription=400 bad_request}

```

How can i debug those kind of errors?

[Ibrahim]

I forgot to mention that this error happens on version 1.1, i tried also the master branch and the same problem exists, BUT this problem does not happen in version 1.0.3

[Jens Alfke]

This looks like a regression in Couchbase Lite. Please file an issue on Github and we'll investigate.

In the issue, please include the JSON of the document.

--Jens