Comment 1 for bug 1680731

It seems like this issue only happens on object in EC policy,

# EC policy

$ curl -i http://192.168.190.21/v1/AUTH_demo/ec64/a -X GET -H "X-Auth-Token: AUTH_tk383654937f2d4fa3a1cb26fbaaf82b40"
HTTP/1.1 200 OK
Content-Length: 0
X-Object-Meta-Mtime: 1491541780.000000
Accept-Ranges: bytes
Last-Modified: Fri, 07 Apr 2017 05:09:45 GMT
Connection: close
Etag: d41d8cd98f00b204e9800998ecf8427e
X-Timestamp: 1491541784.48274
Date: Fri, 07 Apr 2017 06:52:24 GMT
Content-Type: application/octet-stream
X-Trans-Id: tx476d99bf575f41e48e8ba-0058e73728
X-Openstack-Request-Id: tx476d99bf575f41e48e8ba-0058e73728

# Replica policy

$ curl -i http://192.168.190.21/v1/AUTH_demo/gw/20MB -I -H "X-Auth-Token: AUTH_tk383654937f2d4fa3a1cb26fbaaf82b40"
HTTP/1.1 200 OK
Content-Length: 20971520
Content-Type: application/octet-stream
Accept-Ranges: bytes
Last-Modified: Fri, 07 Apr 2017 06:51:27 GMT
Etag: 8f4e33f3dc3e414ff94e5fb6905cba8c
X-Timestamp: 1491547886.25414
X-Object-Meta-Mtime: 1491547877.000000
X-Trans-Id: tx63c97a2b94e34ae2a5830-0058e7372c
X-Openstack-Request-Id: tx63c97a2b94e34ae2a5830-0058e7372c
Date: Fri, 07 Apr 2017 06:52:28 GMT