fcd9e0d5c6
For reference types the IntegerProperty class (no matter if NDB or not) constructor is passed the referenced table name as the first parameter. For non-NDB, the first parameter is 'verbose_name'. For NDB, the first parameter is 'name'. In NDB mode this causes the property to have a wrong identity and therefore references fail to work properly. The verbose_name set in non-NDB mode is relatively harmless in comparison, but seems to be wrong as well as it does not really make sense. Do not pass referenced table name to the IntegerProperty constructor in either case.