Redmine

Database: Postgresql 9.0.1
Ruby: ruby 1.8.7 (2010-08-16 patchlevel 302) [x86_64-linux]
Rails: 2.3.8
Redmine: 1.0.2

Os: Sabayon 5.2
sys-libs/zlib-1.2.3-r1

Error message in log:
Processing WikiController#diff (for 82.160.43.194 at 2010-10-12 11:56:59) [GET]
Parameters: {"commit"=>"Pokaż różnice", "action"=>"diff", "id"=>"xx123", "page"=>"Zalozenia", "version"=>"9", "controller"=>"wiki", "version_from"=>"1"}

Zlib::DataError (incorrect header check):
app/models/wiki_content.rb:91:in `inflate'
app/models/wiki_content.rb:91:in `text'
app/models/wiki_page.rb:160:in `initialize'
app/models/wiki_page.rb:103:in `new'
app/models/wiki_page.rb:103:in `diff'
app/controllers/wiki_controller.rb:134:in `diff'

Rendering /var/www/redmine/redmine-1.0.2/public/500.html (500 Internal Server Error)

That error shows when gzip wiki history is turned on. I tried also to turn off gzip and post new change to wiki but now history changes shows two lines like that:

\x68312e205a6(...)0a6272616b