Updated ProvidesEvents to initialize in setter

- Moved identifiers initialization to setter

src/ProvidesEvents.php

@@ -45,6 +45,19 @@ trait ProvidesEvents
      */
     public function setEventManager(EventCollection $events)
     {
+        $identifiers = array(__CLASS__, get_class($this));
+        if (isset($this->eventIdentifier)) {
+            if ((is_string($this->eventIdentifier))
+                || (is_array($this->eventIdentifier))
+                || ($this->eventIdentifier instanceof Traversable)
+            ) {
+                $identifiers = array_unique(array_merge($identifiers, (array) $this->eventIdentifier));
+            } elseif (is_object($this->eventIdentifier)) {
+                $identifiers[] = $this->eventIdentifier;
+            }
+            // silently ignore invalid eventIdentifier types
+        }
+        $events->setIdentifiers($identifiers);
         $this->events = $events;
         return $this;
     }
@@ -59,19 +72,7 @@ public function setEventManager(EventCollection $events)
     public function events()
     {
         if (!$this->events instanceof EventCollection) {
-            $identifiers = array(__CLASS__, get_class($this));
-            if (isset($this->eventIdentifier)) {
-                if ((is_string($this->eventIdentifier))
-                    || (is_array($this->eventIdentifier))
-                    || ($this->eventIdentifier instanceof Traversable)
-                ) {
-                    $identifiers = array_unique(array_merge($identifiers, (array) $this->eventIdentifier));
-                } elseif (is_object($this->eventIdentifier)) {
-                    $identifiers[] = $this->eventIdentifier;
-                }
-                // silently ignore invalid eventIdentifier types
-            }
-            $this->setEventManager(new EventManager($identifiers));
+            $this->setEventManager(new EventManager());
         }
         return $this->events;
     }