Fixed that open scope on Project#issues raises an error (#11545).

Patch by Petr Pospisil.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10199 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue.rb

@@ -64,7 +64,6 @@ class Issue < ActiveRecord::Base
         lambda {|*args| { :include => :project,
                           :conditions => Issue.visible_condition(args.shift || User.current, *args) } }
 
-  class << self; undef :open; end
   scope :open, lambda {|*args|
     is_closed = args.size > 0 ? !args.first : false
     {:conditions => ["#{IssueStatus.table_name}.is_closed = ?", is_closed], :include => :status}

app/models/version.rb

@@ -35,7 +35,6 @@ class Version < ActiveRecord::Base
   validates_inclusion_of :sharing, :in => VERSION_SHARINGS
 
   scope :named, lambda {|arg| { :conditions => ["LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip]}}
-  class << self; undef :open; end
   scope :open, :conditions => {:status => 'open'}
   scope :visible, lambda {|*args| { :include => :project,
                                           :conditions => Project.allowed_to_condition(args.first || User.current, :view_issues) } }