update the pattern does not chanage the value correctly.

let't say the value is 123456 and the pattern is 111111.
the input mask will show all the numbers and it works perfectly!
if I change mask to 111 the input mask will show 123 which is correct. but if I change the mask back to 11111 it will show 123__ !!!!!!
However the value is not changed and even I provide the correct value (123456) again but since the value has not changed it ignores it!!!
you can see it here: http://insin.github.io/react-maskedinput/

I would appreciate any help