Can't create cyrillic SEF alias in product translation

[guidocx842]

Good morning everybody,
I've a problem with SEF alias in product russian (cyrillic) translation.
If in Sef Alias field I insert a latin one (i.e. "permanent colour") it's all ok. In russian translation, if I change it with "Перманентное-окрашивание" I got an error: vmError: VmTableData Sef Alias in record is missing! Can't save the record with no Sef Alias.
I see from here: http://forum.virtuemart.net/index.php?topic=101831.0 that there was an analogue problem on April 25, 2012. Does anybody know if somebody found a solution? I prefer to not touch manually the database if it's possible...
Thank you very much!