Correct createPartyRole call with pk collision risk detected by Supatthra Nawicha on OFBIZ-5853, while waiting for discussion if revert of createPartyRole from entity-auto is need or not

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1637721 13f79535-47bb-0310-9956-ffa450edef68