Fixes context menu broken by r3109 (#2405).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3111 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/issues_controller.rb

@@ -421,9 +421,9 @@ class IssuesController < ApplicationController
     if @project
       @assignables = @project.assignable_users
       @assignables << @issue.assigned_to if @issue && @issue.assigned_to && !@assignables.include?(@issue.assigned_to)
+      @trackers = @project.trackers
     end
     
-    @trackers = @project.trackers
     @priorities = IssuePriority.all.reverse
     @statuses = IssueStatus.find(:all, :order => 'position')
     @back = params[:back_url] || request.env['HTTP_REFERER']

app/views/issues/context_menu.rhtml

@@ -18,6 +18,7 @@
 	        :class => 'icon-edit', :disabled => !@can[:edit] %></li>
 <% end %>
 
+	<% unless @tracker.nil? %>
 	<li class="folder">			
 		<a href="#" class="submenu"><%= l(:field_tracker) %></a>
 		<ul>
@@ -27,6 +28,7 @@
 		<% end -%>
 		</ul>
 	</li>
+	<% end %>
 	<li class="folder">			
 		<a href="#" class="submenu"><%= l(:field_priority) %></a>
 		<ul>