Cannot add a task to a user story

[dr-itz]

Using Redmine and current git of scum-pm

Dashboard -> user story -> add task

• the windows opens up and allows filling in
• clicking "create" gives a HTTP 500 with the following backtrace:
  TypeError (can't convert nil into String):
  lib/redmine/hook.rb:63:in send' lib/redmine/hook.rb:63:incall_hook'
  lib/redmine/hook.rb:63:in each' lib/redmine/hook.rb:63:incall_hook'
  lib/redmine/hook.rb:60:in call_hook' lib/redmine/hook.rb:141:incall_hook'
  app/controllers/issues_controller.rb:128:in create' /usr/lib/ruby/1.8/phusion_passenger/rack/request_handler.rb:95:inprocess_request'
  /usr/lib/ruby/1.8/phusion_passenger/abstract_request_handler.rb:207:in main_loop' /usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:374:instart_request_handler'
  /usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:332:in handle_spawn_application' /usr/lib/ruby/1.8/phusion_passenger/utils.rb:184:insafe_fork'
  /usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:330:in handle_spawn_application' /usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:insend'
  /usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in main_loop' /usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:196:instart_synchronously'
  /usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:163:in start' /usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:209:instart'
  /usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:262:in spawn_rails_application' /usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:126:inlookup_or_add'
  /usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:256:in spawn_rails_application' /usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:80:insynchronize'
  /usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:79:in synchronize' /usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:255:inspawn_rails_application'
  /usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:154:in spawn_application' /usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:287:inhandle_spawn_application'
  /usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in __send__' /usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:inmain_loop'
  /usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
  /usr/lib/phusion_passenger/passenger-spawn-server:61

the following (wrong) patchlet lets me creates issues, but not assigned to the user story:
diff --git a/lib/hooks.rb b/lib/hooks.rb
index aa5dd42..2b9662d 100644
--- a/lib/hooks.rb
+++ b/lib/hooks.rb
@@ -4,10 +4,10 @@ module RedmineSprints
render_on :view_issues_show_details_bottom, :partial => "issue_sprints/redirect_after_create"

     def controller_issues_new_before_save(context = {})
-      context[:issue].user_story_id = context[:params][:issue][:user_story_id]
-      if context[:issue].user_story_id && context[:issue].fixed_version_id
-        context[:issue].redirect_to = url_for(:controller => :sprints, :action => "show", :id => context[:issue].fixed_version_id, :project_id => context[:issue].project.i
-      end
+#      context[:issue].user_story_id = context[:params][:issue][:user_story_id]
+#      if context[:issue].user_story_id && context[:issue].fixed_version_id
+#        context[:issue].redirect_to = url_for(:controller => :sprints, :action => "show", :id => context[:issue].fixed_version_id, :project_id => context[:issue].project.
+#      end
     end
   end

tasks can then be assigned to user stories using drag'n'drop from the "unassigned tasks"