Minor bug: backspacing. Eg, edit some value, type "1", now backspace changes text to "NaN" instead of expected "". To make it a bit worse, users can't even do "

Minor bug: backspacing. Eg, edit some value, type "1", now backspace changes text to "NaN" instead of expected "". To make it a bit worse, users can't even do "01", now backspace changes to "" instead of expected "0". Both should be fixed imo.