Index: wp-login.php
===================================================================
--- wp-login.php	(revision 13450)
+++ wp-login.php	(working copy)
@@ -359,11 +359,8 @@
 	check_admin_referer('log-out');
 	wp_logout();
 
-	$redirect_to = 'wp-login.php?loggedout=true';
-	if ( isset( $_REQUEST['redirect_to'] ) )
-		$redirect_to = $_REQUEST['redirect_to'];
-
-	wp_safe_redirect($redirect_to);
+	$redirect_to = isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : 'wp-login.php?loggedout=true';
+	wp_safe_redirect( $redirect_to );
 	exit();
 
 break;
@@ -373,12 +370,14 @@
 	if ( $http_post ) {
 		$errors = retrieve_password();
 		if ( !is_wp_error($errors) ) {
-			wp_redirect('wp-login.php?checkemail=confirm');
+			$redirect_to = isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : 'wp-login.php?checkemail=confirm';
+			wp_safe_redirect( $redirect_to );
 			exit();
 		}
 	}
 
 	if ( isset($_GET['error']) && 'invalidkey' == $_GET['error'] ) $errors->add('invalidkey', __('Sorry, that key does not appear to be valid.'));
+	$redirect_to = apply_filters( 'lostpassword_redirect', isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : '' );
 
 	do_action('lost_password');
 	login_header(__('Lost Password'), '<p class="message">' . __('Please enter your username or e-mail address. You will receive a new password via e-mail.') . '</p>', $errors);
@@ -393,6 +392,7 @@
 		<input type="text" name="user_login" id="user_login" class="input" value="<?php echo esc_attr($user_login); ?>" size="20" tabindex="10" /></label>
 	</p>
 <?php do_action('lostpassword_form'); ?>
+	<input type="hidden" name="redirect_to" value="<?php echo esc_attr( $redirect_to ); ?>" />
 	<p class="submit"><input type="submit" name="wp-submit" id="wp-submit" class="button-primary" value="<?php esc_attr_e('Get New Password'); ?>" tabindex="100" /></p>
 </form>
 
@@ -434,7 +434,7 @@
 
 case 'register' :
 	if ( is_multisite() ) {
-		// WPMU doesn't use this
+		// Multisite uses wp-signup.php
 		wp_redirect( apply_filters( 'wp_signup_location', get_bloginfo('wpurl') . '/wp-signup.php' ) );
 		exit;
 	}
@@ -453,11 +453,13 @@
 		$user_email = $_POST['user_email'];
 		$errors = register_new_user($user_login, $user_email);
 		if ( !is_wp_error($errors) ) {
-			wp_redirect('wp-login.php?checkemail=registered');
+			$redirect_to = isset( $_POST['redirect_to'] ) ? $_POST['redirect_to'] : 'wp-login.php?checkemail=registered';
+			wp_safe_redirect( $redirect_to );
 			exit();
 		}
 	}
 
+	$redirect_to = apply_filters( 'registration_redirect', isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : '' );
 	login_header(__('Registration Form'), '<p class="message register">' . __('Register For This Site') . '</p>', $errors);
 ?>
 
@@ -473,6 +475,7 @@
 <?php do_action('register_form'); ?>
 	<p id="reg_passmail"><?php _e('A password will be e-mailed to you.') ?></p>
 	<br class="clear" />
+	<input type="hidden" name="redirect_to" value="<?php echo esc_attr( $redirect_to ); ?>" />
 	<p class="submit"><input type="submit" name="wp-submit" id="wp-submit" class="button-primary" value="<?php esc_attr_e('Register'); ?>" tabindex="100" /></p>
 </form>