Friendly URL not working on non English default language

[Sunny eXtreme]

Hello,

when i use only English, Friendly URL working fine - when i change URL in BO and click preview, it redirect on the right place.

But when i add second lang (my is Bulgarian) AND switch it to default lang, when i change URL, link in preview page is old one and it open "404".

I check and Argentina localization, it working the same way.

TB 1.2, without cache

[30knees]

Same problem - it's the link in the BO that doesn't work. 
The problem is the preview URL is like this for German when I'm in the BO using English as my default language:
https://www.store.com/de/German-Category/English-Product

[datakick]

This will be fixed in next major version