Fix issue where incorrect elements would be used.

If your view is using an alternate extension and you have elements
that share filenames, the incorrect element would be used.
Fixes #2082

cake/libs/view/view.php

@@ -380,6 +380,9 @@ function element($name, $params = array(), $loadHelpers = false) {
 					break;
 				}
 			}
+			if ($file) {
+				break;
+			}
 		}
 
 		if (is_file($file)) {

cake/tests/cases/libs/view/view.test.php

@@ -487,6 +487,17 @@ function testElement() {
 		$this->assertPattern('/non_existant_element/', $result);
 	}
 
+/**
+ * Test that alternate extensions work with duplicated elements.
+ *
+ * @return void
+ */
+	function testElementExtensions() {
+		$this->View->ext = '.xml';
+		$result = $this->View->element('test_element');
+		$this->assertEqual(trim($result), '<p>test element</p>');
+	}
+
 /**
  * test that additional element viewVars don't get overwritten with helpers.
  *

cake/tests/test_app/views/elements/test_element.xml

@@ -0,0 +1 @@
+<p>test element</p>