Editable datatable not triggering blur event on changing value to other value after first update

I've a editable data table configured to submit on blur. This works perfectly for any data except the original value for cell.
I'm using the onPreSubmit event and to do other calculation and canceling the submit.For actual submit to server I've separate button for it.

Example:
Suppose I've a cell in a table that has a value 9. Everything works fine when I set value 10. But after setting this value to 10 or any other value it does not let me set back to 9.

Has anyone faced the same issue?