Zeoslib Portal

I use Zeoslib with SQLite. I prepared simple table with only one datafield.
There are on the form: ZConnection, ZTable, Datasource, DBGrid and DBNavigator and added one field calculated-type, filled in below procedure:

procedure TForm1.ZTable1CalcFields(DataSet: TDataSet);
begin
ZTable1calcfield.AsString := 'something calc';
end;

When I append new record - the last calculated field disappear in DBGrid. I observed this only in Zeos - in case of BDE that is not happen.

screenshot before append:
http://img181.imageshack.us/img181/7735/p1jh2.gif

screenshot after append:
http://img181.imageshack.us/img181/1141/p2hs8.gif


How to fix this problem?
Please help!

Please log a bug report. Preferably including a very small sample project showing the problem.

Mark