Fix redirect to home page after open signup

Fixes #1349

app/controllers/users_controller.rb

@@ -99,13 +99,14 @@ class UsersController < ApplicationController
           return
         end
 
+        signup_by_admin = true if (@user && @user.is_admin?)
         first_user_signing_up = User.no_users_yet?
         user.is_admin = true if first_user_signing_up
         if user.save
           @user = User.authenticate(user.login, params['user']['password'])
           @user.create_preference({:locale => I18n.locale})
           @user.save
-          session['user_id'] = @user.id if first_user_signing_up
+          session['user_id'] = @user.id unless signup_by_admin
           notify :notice, t('users.signup_successful', :username => @user.login)
           redirect_back_or_home
         end

test/integration/stories_test.rb

@@ -14,10 +14,25 @@ class StoriesTest < ActionController::IntegrationTest
   end
   
   def test_signup_new_user_by_nonadmin
+    SITE_CONFIG['open_signups'] = false
     other_user = new_session_as(:other_user,"sesame")
     other_user.goes_to_signup_as_nonadmin
   end
   
+  def test_open_signup_new_user
+    SITE_CONFIG['open_signups'] = true
+    get "/signup"
+    assert_response :success
+    assert_template "users/new"
+    post "/users", :user => {:login => "newbie",
+                                  :password => "newbiepass",
+                                  :password_confirmation => "newbiepass"}
+    assert_response :redirect
+    follow_redirect!
+    assert_response :success
+    assert_template "todos/index"
+  end    
+  
   private
 
     module CustomAssertions