- Create a table Mandatory with one Non-Null, Unique, Indexed column
- Fill in some values in the backend
- On Frontend create a new page
- Add a data table to the page and link it with table Mandatory and permit editing
- Launch page
- Edit a row and clear the Non-Null, Unique, Indexed column
Save succeeds and database now has a null value for a non-null column
This is not possible in Backend UI - guessing backend validation is missed somewhere.