AC-15646::Unable to create new multiselect attribute from the product page

glo60612 · glo60612 · commit ef9989c4a9b8 · 2025-09-18T17:40:26.000+05:30
diff --git a/app/code/Magento/Catalog/Controller/Adminhtml/Product/Attribute/Save.php b/app/code/Magento/Catalog/Controller/Adminhtml/Product/Attribute/Save.php
@@ -273,7 +273,7 @@ public function execute()
                 $data['default_value'] = null;
             } elseif (isset($data['default'])) {
                 $defaultOptions = [];
-                foreach ($data['default'] as $defaultValue) {
+                foreach ((array)$data['default'] as $defaultValue) {
                     if ((int)$defaultValue > 0) {
                         $defaultOptions[] = $defaultValue;
                     }

Original file line number	Diff line number	Diff line change
`@@ -273,7 +273,7 @@ public function execute()`
`273`	`273`	`$data['default_value'] = null;`
`274`	`274`	`} elseif (isset($data['default'])) {`
`275`	`275`	`$defaultOptions = [];`
`276`		`- foreach ($data['default'] as $defaultValue) {`
	`276`	`+ foreach ((array)$data['default'] as $defaultValue) {`
`277`	`277`	`if ((int)$defaultValue > 0) {`
`278`	`278`	`$defaultOptions[] = $defaultValue;`
`279`	`279`	`}`