Unwanted Wonder effect in Scenario

[Gen. Maximus]

Say in your custom scenario you put the World Wonder like Great Library and Oxford Uni in their real place locations in your SDK World Builder. But on turn#1, you will get Free Tech which is not intended as the Wonder is suppose to be there already. How do you place the wonder without triggering the unwanted effect?

 

[whoward69]

Assuming your custom scenario makes other changes via XML (or SQL), mod the buildings to not produce their effects