tag doesn't save

[rafael-h-ferreira]

I have redmine 1.3. The plugin installs perfectly, but when I save the project, the tag simply doesn't save. No error messages.

Log messages:

Processing ProjectsController#update (for 94.132.156.133 at 2013-11-06 10:02:32) [PUT]
Parameters: {"commit"=>"Save", "action"=>"update", "_method"=>"put", "authenticity_token"=>"saTF7Or7boVZ886UsrXfboRc2d3u25o+vmOBVKJSIbE=", "id"=>"project_name", "project"=>{"issue_custom_field_ids"=>[""], "name"=>"project_name", "custom_field_values"=>{"11"=>""}, "tracker_ids"=>["1", "2", "3", "9", "10", ""], "tag_list"=>"new_tag_name", "homepage"=>"homepage.com", "parent_id"=>"", "is_public"=>"0", "description"=>""}, "controller"=>"projects"}
Redirected to https://xpto.com/projects/project_name/settings
Completed in 18ms (DB: 1) | 302 Found [https://xpto.com/projects/project_name]

Processing ProjectsController#settings (for 94.132.156.133 at 2013-11-06 10:02:32) [GET]
Parameters: {"action"=>"settings", "id"=>"project_name", "controller"=>"projects"}
Rendering template within layouts/base
Rendering projects/settings
Completed in 186ms (View: 182, DB: 1) | 200 OK [https://xpto.com/projects/project_name/settings]