Merge branch '2.3' into 2.7

* 2.3:
  [2.7] Fixed flatten exception recursion with errors
  Embedded identifier support
  Change the ExtensionInterface load method definition to bo identical to the documentation.
  add and correct armenian translations
  [Config] Fix array sort on normalization in edge case
  [Yaml] fix indented line handling in folded blocks
  improve BrowserKit test coverage p1

Author: fabpot

Definition/ArrayNode.php

@@ -55,14 +55,17 @@ protected function preNormalize($value)
             return $value;
         }
 
+        $normalized = array();
+
         foreach ($value as $k => $v) {
             if (false !== strpos($k, '-') && false === strpos($k, '_') && !array_key_exists($normalizedKey = str_replace('-', '_', $k), $value)) {
-                $value[$normalizedKey] = $v;
-                unset($value[$k]);
+                $normalized[$normalizedKey] = $v;
+            } else {
+                $normalized[$k] = $v;
             }
         }
 
-        return $value;
+        return $normalized;
     }
 
     /**

Tests/Definition/ArrayNodeTest.php

@@ -74,6 +74,10 @@ public function getPreNormalizationTests()
                 array('foo-bar_moo' => 'foo'),
                 array('foo-bar_moo' => 'foo'),
             ),
+            array(
+                array('anything-with-dash-and-no-underscore' => 'first', 'no_dash' => 'second'),
+                array('anything_with_dash_and_no_underscore' => 'first', 'no_dash' => 'second'),
+            ),
             array(
                 array('foo-bar' => null, 'foo_bar' => 'foo'),
                 array('foo-bar' => null, 'foo_bar' => 'foo'),