Changes from code review

Signed-off-by: Gary Hockin <[email protected]>

Author: GeeH

src/ServiceManager.php

@@ -748,7 +748,7 @@ private function createLazyServiceDelegatorFactory()
     private function mergeDelegators(array $config)
     {
         foreach ($config as $key => $delegators) {
-            if (! isset($this->delegators[$key])) {
+            if (! array_key_exists($key, $this->delegators)) {
                 $this->delegators[$key] = $delegators;
                 continue;
             }

test/ServiceManagerTest.php

@@ -367,10 +367,10 @@ public function testResolvedAliasNoMatchingAbstractFactoryReturnsFalse()
     }
 
     /**
-     * Hotfix #3
+     * @group #3
      * @see https://github.com/laminas/laminas-servicemanager/issues/3
      */
-    public function testConfigureMultipleTimesAvoidsDuplicates()
+    public function testConfiguringADelegatorMultipleTimesDoesNotLeadToDuplicateDelegatorCalls()
     {
         $delegatorFactory = function (
             ContainerInterface $container,