Ticket #19614: 19614.2.patch

wp-includes/pluggable.php

@@ -1629 +1629 @@
         }
 
         if ( !empty($email) )
-                $email_hash = md5( strtolower( $email ) );
+                $email_hash = md5( strtolower( trim( $email ) ) );
 
         if ( is_ssl() ) {
                 $host = 'https://secure.gravatar.com';