Fixes "CheckOutEvents setCheckOutPages" https://issues.apache.org/jira/browse/OFBIZ-4161
Simply returns an error in request and get to the view, as does shipping

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1487997 13f79535-47bb-0310-9956-ffa450edef68