TASK: Iterate over array keys instead of cloning their keys

Author: mhsdesign

Neos.Flow/Classes/Reflection/ReflectionService.php

@@ -1845,12 +1845,12 @@ private function forgetClass(string $className): void
         }
 
         if (isset($this->classReflectionData[$className][self::DATA_CLASS_SUBCLASSES])) {
-            foreach (array_keys($this->classReflectionData[$className][self::DATA_CLASS_SUBCLASSES]) as $subClassName) {
+            foreach ($this->classReflectionData[$className][self::DATA_CLASS_SUBCLASSES] as $subClassName => $_) {
                 $this->forgetClass((string)$subClassName);
             }
         }
 
-        foreach (array_keys($this->annotatedClasses) as $annotationClassName) {
+        foreach ($this->annotatedClasses as $annotationClassName => $_) {
             if (isset($this->annotatedClasses[$annotationClassName][$className])) {
                 unset($this->annotatedClasses[$annotationClassName][$className]);
             }
@@ -1861,7 +1861,7 @@ private function forgetClass(string $className): void
             unset($this->classSchemata[$className]);
         }
 
-        foreach (array_keys($this->classesByMethodAnnotations) as $annotationClassName) {
+        foreach ($this->classesByMethodAnnotations as $annotationClassName => $_) {
             unset($this->classesByMethodAnnotations[$annotationClassName][$className]);
         }