Tolerate int32 value in database when reading into an int64

This use case discovered in reading a hierarchy node

utils.go

@@ -131,10 +131,12 @@ func (v Vertex) GetMultiPropertyAs(key, wantType string) (vals []interface{}, er
 			}
 			vals = append(vals, int32(val))
 		case "int64":
-			var typeIf, valIf interface{}
-			if typeIf, ok = prop.Value.Value.(map[string]interface{})["@type"]; !ok || typeIf != "g:Int64" {
+			typedPropValue := prop.Value.Value.(map[string]interface{})
+			typeAsString, ok := typedPropValue["@type"]
+			if !ok || (typeAsString != "g:Int64" && typeAsString != "g:Int32") {
 				return vals, ErrorUnexpectedPropertyType
 			}
+			var valIf interface{}
 			if valIf, ok = prop.Value.Value.(map[string]interface{})["@value"]; !ok {
 				return vals, ErrorUnexpectedPropertyType
 			}