symfony
diff --git a/‎src/Symfony/Component/Config/Definition/PrototypedArrayNode.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Config/Definition/PrototypedArrayNode.php
+4-4Lines changed: 4 additions & 4 deletions b/‎src/Symfony/Component/Config/Definition/PrototypedArrayNode.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Config/Definition/PrototypedArrayNode.php
+4-4Lines changed: 4 additions & 4 deletions
@@ -225,11 +225,11 @@ protected function normalizeValue($value)
 
         $value = $this->remapXml($value);
 
-        $isAssoc = !array_is_list($value);
+        $isList = array_is_list($value);
         $normalized = [];
         foreach ($value as $k => $v) {
             if (null !== $this->keyAttribute && \is_array($v)) {
-                if (!isset($v[$this->keyAttribute]) && \is_int($k) && !$isAssoc) {
+                if (!isset($v[$this->keyAttribute]) && \is_int($k) && $isList) {
                     $ex = new InvalidConfigurationException(sprintf('The attribute "%s" must be set for path "%s".', $this->keyAttribute, $this->getPath()));
                     $ex->setPath($this->getPath());
 
@@ -304,10 +304,10 @@ protected function mergeValues($leftSide, $rightSide)
             return $rightSide;
         }
 
-        $isAssoc = !array_is_list($rightSide);
+        $isList = array_is_list($rightSide);
         foreach ($rightSide as $k => $v) {
             // prototype, and key is irrelevant there are no named keys, append the element
-            if (null === $this->keyAttribute && !$isAssoc) {
+            if (null === $this->keyAttribute && $isList) {
                 $leftSide[] = $v;
                 continue;
             }