Hi,
my idea is - as usual only with built-in functions - to store the entered text in a hidden question of the same type.
1. There is the question "Open1"
2. create a hidden question of the same type "Open2"
Now create two hidden equations:
3. Store the value of "Open1" into "Open2", BUT ONLY if "Open2" is still empty.
Equation: {Open2=if(is_empty(Open2),Open1,Open2)}
4. Restore "Open2" into "Open1"
Equation: {Open1=Open2}
So, if "Open1" was changed, the "old" value is entered again.
Example. You will see, the first entered text doesn't change.
Joffm