Redmine

No errors in log, but changes not saved. :(

Started GET "/projects/server/wiki/Wiki/edit" for 10.19.19.82 at Fri Apr 05 14:50:11 +0400 2013
Processing by WikiController#edit as HTML
  Parameters: {"id"=>"Wiki", "project_id"=>"server"}
  Rendered attachments/_form.html.erb (2.7ms)
  Rendered wiki/edit.html.erb within layouts/base (23.8ms)
Completed 200 OK in 137ms (Views: 91.0ms | ActiveRecord: 4.5ms)
Started PUT "/projects/server/wiki/Wiki/preview" for 10.19.19.82 at Fri Apr 05 14:51:06 +0400 2013
Processing by WikiController#preview as JS 
Parameters: {"id"=>"Wiki", "attachments"=>{"1"=>{"description"=>""}},
"authenticity_token"=>"8sTgL4678900Yd9hfnGBb85q6H7d849W1oFbkqvKU=", "utf8"=>"✓", 
"content"=>{"comments"=>"", "version"=>"8", "text"=>"h2. *Products:*\n}, 
"commit"=>"Save", "wiki_page"=>{"parent_id"=>""}, "project_id"=>"server"}
Rendered common/_preview.html.erb (14.4ms)
Completed 200 OK in 56ms (Views: 14.9ms | ActiveRecord: 1.8ms)

Environment:
  Redmine version                          2.0.4.stable.11442
  Ruby version                             1.8.7 (i686-linux)
  Rails version                            3.2.12
  Environment                              production
  Database adapter                         MySQL
Redmine plugins:
  redcase                                  1.0 alpha 2.82
  redmine_lightbox                         0.0.1
  stuff_to_do_plugin                       0.4.1

Source: https://github.com/redmine/redmine/tree/2.0-stable