Index: src/wp-includes/formatting.php
===================================================================
--- src/wp-includes/formatting.php	(revision 33142)
+++ src/wp-includes/formatting.php	(working copy)
@@ -1136,7 +1136,8 @@
 		);
 
 		// Used for locale-specific rules
-		$locale = get_locale();
+		// @ticket 32939 Filter for installations that have different locale names
+		$locale = apply_filters( 'remove_accents_get_locale', get_locale() );
 
 		if ( 'de_DE' == $locale || 'de_DE_formal' == $locale ) {
 			$chars[ chr(195).chr(132) ] = 'Ae';