gistfile1.txt

// ORMSettings: flushatrequestend = false, automanagesession = false

// No errors, just obj.myprop not populate to db:
  obj = cacheget(tag);
  entityMerge(obj);
  transaction {
    obj.myprop = 'example';
  }

// Just for testing... 
// Error: a different object with the same identifier value was already associated with the session
  obj = cacheget(tag);
  entityMerge(obj);
  transaction {
    obj.myprop = 'example';
    entitySave(obj);
  }