Forbid to patch auctionPeriod.startDate

Steps To Reproduce
1.Publish procedure
2.Upload clarification document
3.PATCH procedure with body

{
    "auctionPeriod": {
        "startDate": "2222-02-22T22:22:22.222222Z"
    }
}

Expected results
"message": { "auctionPeriod.startDate": "Cannot update with role owner" }

Actual results
Ressponse 200. auctionPeriod.startDate patched