Fix potential access to undefined index
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7b358a144a
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de41002f28
@ -61,7 +61,11 @@ class EventDispatcher implements EventDispatcherInterface
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public function getListeners($eventName = null, $withPriorities = false)
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{
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if (true === $withPriorities) {
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return $eventName ? $this->listeners[$eventName] : array_filter($this->listeners);
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if (null !== $eventName) {
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return isset($this->listeners[$eventName]) ? $this->listeners[$eventName] : array();
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}
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return array_filter($this->listeners);
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}
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if (null !== $eventName) {
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