request failed with 412: Precondition Failed

[vitriolix]

running the build from 8/10/2015 and I'm getting a lot of these:

request failed with 412, body: {
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "conditionNotMet",
    "message": "Precondition Failed",
    "locationType": "header",
    "location": "If-Match"
   }
  ],
  "code": 412,
  "message": "Precondition Failed"
 }
}
. retrying whole upload in 5s

[vitriolix]

this is a dupe of:

#12