Hmm... I could swear that I tried this. Or maybe it was in previous, more buggy version of Opera?.. Anyway, it worked perfectly now. Thank you!
...Also, trying all of this, I noticed issue with "select language" icon. I seen it quite long ago, but definitely not all way back. Maybe, month or so. Icon is lower than it must be (it's overwritten by language selector itself), and text that must be inside bubble is somewhere 100 pixels at right. At least, in Opera and Chrome.