Magento fails to create link with double characters in product name

[vkublytskyi]

STR:

1. Open Magento Admin
2. Go to product add page
3. Fill product information with Japanese or another double byte characters (e.g. Chinese, Hindy, etc.)

ER: URL key automatically generated

AR: URL key is empty

4. Click New Category button
5. Fill data
6. Save change

ER: request processed succesfully
AR: error message displayed