Tried on trusty, works fine:
touch Файл\ с\ кучей\ пробелов echo ./Фа[TAB pressed]йл\ с\ кучей\ пробелов
All symbols look perfectly fine.
Tried on trusty, works fine:
touch Файл\ с\ кучей\ пробелов
echo ./Фа[TAB pressed]йл\ с\ кучей\ пробелов
All symbols look perfectly fine.