From ab2684e4ca31bce1ed684db125a225cf2d6b523b Mon Sep 17 00:00:00 2001
From: Maxime Steinhausser <ogizanagi@users.noreply.github.com>
Date: Fri, 28 Dec 2018 18:37:37 +0100
Subject: [PATCH] Fix allow_no_handers for 4.2

---
 messenger/multiple_buses.rst | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/messenger/multiple_buses.rst b/messenger/multiple_buses.rst
index e3b221450d6..bd49541a1b3 100644
--- a/messenger/multiple_buses.rst
+++ b/messenger/multiple_buses.rst
@@ -34,8 +34,8 @@ an **event bus**. The event bus could have zero or more subscribers.
                         middleware:
                             - validation
                     messenger.bus.events:
+                        default_middleware: allow_no_handlers
                         middleware:
-                            - allow_no_handler
                             - validation
 
     .. code-block:: xml
@@ -60,9 +60,8 @@ an **event bus**. The event bus could have zero or more subscribers.
                     <framework:bus name="messenger.bus.queries">
                         <framework:middleware id="validation" />
                     <framework:bus>
-                    <framework:bus name="messenger.bus.events">
+                    <framework:bus name="messenger.bus.events" default-middleware="allow_no_handlers">
                         <framework:middleware id="validation" />
-                        <framework:middleware id="allow_no_handler" />
                     <framework:bus>
                 </framework:messenger>
             </framework:config>
@@ -88,9 +87,9 @@ an **event bus**. The event bus could have zero or more subscribers.
                         ),
                     ),
                     'messenger.bus.events' => array(
+                        'default_middleware' => 'allow_no_handlers',
                         'middleware' => array(
                             'validation',
-                            'allow_no_handler',
                         ),
                     ),
                 ),