[2.5x] Import the user plugins for onUserLoginFailure

Backport #2761 to Joomla 2.5

libraries/joomla/application/application.php

@@ -669,6 +669,9 @@ public function login($credentials, $options = array())
 		$authenticate = JAuthentication::getInstance();
 		$response = $authenticate->authenticate($credentials, $options);
 
+		// Import the user plugin group.
+		JPluginHelper::importPlugin('user');
+
 		if ($response->status === JAuthentication::STATUS_SUCCESS)
 		{
 			// validate that the user should be able to login (different to being authenticated)
@@ -704,9 +707,6 @@ public function login($credentials, $options = array())
 				}
 			}
 
-			// Import the user plugin group.
-			JPluginHelper::importPlugin('user');
-
 			// OK, the credentials are authenticated and user is authorised.  Lets fire the onLogin event.
 			$results = $this->triggerEvent('onUserLogin', array((array) $response, $options));