Fixed: when bulk editing, setting "Assigned to" to "nobody" causes an sql error with Postgresql (#935).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1294 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/issues_controller_test.rb

@@ -339,6 +339,16 @@ class IssuesControllerTest < Test::Unit::TestCase
     assert_equal 'Bulk editing', Issue.find(1).journals.find(:first, :order => 'created_on DESC').notes
   end
 
+  def test_bulk_unassign
+    assert_not_nil Issue.find(2).assigned_to
+    @request.session[:user_id] = 2
+    # unassign issues
+    post :bulk_edit, :ids => [1, 2], :notes => 'Bulk unassigning', :assigned_to_id => 'none'
+    assert_response 302
+    # check that the issues were updated
+    assert_nil Issue.find(2).assigned_to
+  end
+  
   def test_move_one_issue_to_another_project
     @request.session[:user_id] = 1
     post :move, :id => 1, :new_project_id => 2