Issue新建页面的指派者，按照姓名排序

app/helpers/application_helper.rb

@@ -19,7 +19,7 @@
 
 require 'forwardable'
 require 'cgi'
-
+require  'iconv'
 module ApplicationHelper
   include Redmine::WikiFormatting::Macros::Definitions
   include Redmine::I18n
@@ -1185,13 +1185,14 @@ module ApplicationHelper
   end
 
   def assigned_options_for_select(collection, selected=nil)
+    conv = Iconv.new("GBK", "utf-8")
     s = ''
     s << content_tag('option', "#{l(:label_assiged_tip)}", :value => 0)
     if collection.include?(User.current)
       s << content_tag('option', "<< #{l(:label_me)} >>", :value => User.current.id)
     end
     groups = ''
-    collection.sort.each do |element|
+    collection.sort{|x, y| conv.iconv(x.lastname) <=> conv.iconv(y.lastname)}.each do |element|
       selected_attribute = ' selected="selected"' if option_value_selected?(element, selected)
       (element.is_a?(Group) ? groups : s) << %(<option value="#{element.id}"#{selected_attribute}>#{h element.show_name}</option>)
     end