Fixed MissingFeatureException: let user choose to copy attachments or not when bulk copying issues.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9405 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue.rb

@@ -145,8 +145,8 @@ class Issue < ActiveRecord::Base
   end
 
   # Returns an unsaved copy of the issue
-  def copy(attributes=nil)
-    copy = self.class.new.copy_from(self)
+  def copy(attributes=nil, copy_options={})
+    copy = self.class.new.copy_from(self, copy_options)
     copy.attributes = attributes if attributes
     copy
   end