[firebird-support] FireDAC: FDQuery with CachedUpdates fields value change detection

[fredf...@hotmail.com [firebird-support]]

I want to detect if user changed value (eg DBComboBox or DBCheckbox) but flag 
UpfatesPending is False (no changes made), FDQuery.Mofified False and 
UpdateStatus is not usModified, too. What should I do to check dataset status?  
 Other way around to compare OldValue with NewValue but NewValue is always null.