1 files changed, 12 insertions, 11 deletions
diff --git a/vendor/ramsey/collection/src/AbstractCollection.php b/vendor/ramsey/collection/src/AbstractCollection.php
index 2facf0e89..d2cd1151c 100644
--- a/vendor/ramsey/collection/src/AbstractCollection.php
+++ b/vendor/ramsey/collection/src/AbstractCollection.php
@@ -32,6 +32,7 @@ use function array_uintersect;
 use function current;
 use function end;
 use function in_array;
+use function is_int;
 use function reset;
 use function sprintf;
 use function unserialize;
@@ -42,8 +43,8 @@ use function usort;
  * minimize the effort required to implement this interface
  *
  * @template T
- * @template-extends AbstractArray<T>
- * @template-implements CollectionInterface<T>
+ * @extends AbstractArray<T>
+ * @implements CollectionInterface<T>
  */
 abstract class AbstractCollection extends AbstractArray implements CollectionInterface
 {
@@ -238,7 +239,7 @@ abstract class AbstractCollection extends AbstractArray implements CollectionInt
 
     public function merge(CollectionInterface ...$collections): CollectionInterface
     {
-        $temp = [$this->data];
+        $mergedCollection = clone $this;
 
         foreach ($collections as $index => $collection) {
             if (!$collection instanceof static) {
@@ -255,16 +256,16 @@ abstract class AbstractCollection extends AbstractArray implements CollectionInt
                 );
             }
 
-            $temp[] = $collection->toArray();
+            foreach ($collection as $key => $value) {
+                if (is_int($key)) {
+                    $mergedCollection[] = $value;
+                } else {
+                    $mergedCollection[$key] = $value;
+                }
+            }
         }
 
-        /** @var array<array-key, T> $merge */
-        $merge = array_merge(...$temp);
-
-        $collection = clone $this;
-        $collection->data = $merge;
-
-        return $collection;
+        return $mergedCollection;
     }
 
     /**