Bug with navigate

I found a bug in the handling of the editing in the new Layouts.
Situation:
I have a program in panel 1 and another in panel 2 they are connected with a simple 1:n relation.
If i now edit the program in panel 2, I can navigate thru the records in panel 1 and change the displayed record in panel 2 so i can “edit” a non existing record.
In my eyes it should not be possible to go to annother record in panel 1.

In the next version we will give the user a warning if he navigates to a other record while editing a child. He can choose to Cancel changes, save Changes or Navigate back.