From 9dfe1372ce941a36b700efe1dbb4851ea5bc3520 Mon Sep 17 00:00:00 2001
From: Mahesh Singh <mahesh721@webkul.com>
Date: Sun, 18 Nov 2018 17:31:34 +0530
Subject: [PATCH 1/2] issue #19205 fixed for 2.3-develop

---
 app/code/Magento/Bundle/Model/Product/Type.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Bundle/Model/Product/Type.php b/app/code/Magento/Bundle/Model/Product/Type.php
index b61df8d7cb125..e5755df2291ee 100644
--- a/app/code/Magento/Bundle/Model/Product/Type.php
+++ b/app/code/Magento/Bundle/Model/Product/Type.php
@@ -827,7 +827,7 @@ private function multiToFlatArray(array $array)
             if (is_array($value)) {
                 $flatArray = array_merge($flatArray, $this->multiToFlatArray($value));
             } else {
-                $flatArray[$key] = $value;
+                $flatArray[] = $value;
             }
         }
 

From eb2e505c68b1ed24ccc7d45e4a7eb4c2b0216f23 Mon Sep 17 00:00:00 2001
From: Mahesh Singh <mahesh721@webkul.com>
Date: Sun, 18 Nov 2018 18:57:14 +0530
Subject: [PATCH 2/2] removed unused variable

---
 app/code/Magento/Bundle/Model/Product/Type.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Bundle/Model/Product/Type.php b/app/code/Magento/Bundle/Model/Product/Type.php
index e5755df2291ee..c8cd8c15fdb8e 100644
--- a/app/code/Magento/Bundle/Model/Product/Type.php
+++ b/app/code/Magento/Bundle/Model/Product/Type.php
@@ -823,7 +823,7 @@ private function recursiveIntval(array $array)
     private function multiToFlatArray(array $array)
     {
         $flatArray = [];
-        foreach ($array as $key => $value) {
+        foreach ($array as $value) {
             if (is_array($value)) {
                 $flatArray = array_merge($flatArray, $this->multiToFlatArray($value));
             } else {