[Haskell-cafe] Problems with HStringTemplate UTF8 templates in ghc-6.12

Hi all, I need your help I have something i can't understand with hstringtemplate. I'm using this library in my project to render UTF-8 encoded templates. Everything was fine when I were using ghc-6.10 and hstringtemplate-0.6.1 But recently I upgraded to ghc-6.12 and hstringtemplate-0.6.2 and the output of my program now broken. I can see correctly only UTF8 values that I pass to template from database. It seems that toString method produces not UTF-8 encoded string, because if i use Codec.Binary.UTF8.String.encodeString i get correct output except for values from database. Any ideas how to solve the problem?