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lib/Doctrine/Query.php

@@ -688,6 +688,8 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
                                     $componentAlias = $this->getRootAlias();
                                 }
     
+                                $this->load($componentAlias);
+
                                 // check the existence of the component alias
                                 if ( ! isset($this->_aliasMap[$componentAlias])) {
                                     throw new Doctrine_Query_Exception('Unknown component alias ' . $componentAlias);
@@ -1465,6 +1467,9 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
 
     public function load($path, $loadFields = true)
     {
+    	if (isset($this->_aliasMap[$path])) {
+    	   return $this->_aliasMap[$path];
+    	}
         $e = Doctrine_Tokenizer::quoteExplode($path, ' INDEXBY ');
 
         $mapWith = null;