Tsearch strange error

Postgresql 8.2.0 (release)

SELECT set_curcfg('default_russian');
Then
Tsearch reports the error:
ERROR:   Affix parse error at 78 line
on every subsequent tsearch function call
if the_text_to_search_in contains some latin characters.

This error was encountered when upgrade from 8.1.4 to 8.2.0