Moves check for missing nodes down past the creation of provisional data, so that provisional data is available to the datatype.handle_request method when it is called within missing_nodes. re #4311
Moves check for missing nodes down past the creation of provisional data, so that provisional data is available to the datatype.handle_request method when it is called within missing_nodes. re #4311

archesproject/arches,archesproject/arches,archesproject/arches,archesproject/arches