#10 keyboard input bug with two byte letters

[Igor Mineev]

When i try to fill input field with spaces and cyrillic (russian) letters (and backspaces) the length of field decreasing
how to:
1) type some two byte long characters and spaces
2) fill the field
3) try to press backspace, space, two byte letters many times.
4) Well

[Igor Mineev]

i've got it on Python2