Spomky
diff --git a/‎components/runtime.rst
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+3Lines changed: 3 additions & 0 deletions b/‎components/runtime.rst
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+3Lines changed: 3 additions & 0 deletions
@@ -36,6 +36,9 @@ So how does this front-controller work? At first, the special
 the component. This file runs the following logic:
 
 #. It instantiates a :class:`Symfony\\Component\\Runtime\\RuntimeInterface`;
+#. The front-controller script (e.g. ``public/index.php``) is included by the
+   runtime, making it run again. Ensure this doesn't produce any side effects
+   in your code;
 #. The callable (returned by ``public/index.php``) is passed to the Runtime, whose job
    is to resolve the arguments (in this example: ``array $context``);
 #. Then, this callable is called to get the application (``App\Kernel``);