GraphQl products query returns erro: GetAttributeValueComposite::execute(): Argument #3 ($value) must be of type string, null given about magento2 HOT 19 OPEN

Why am I getting this response? I did not report or comment on this.

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Hi @zakdma. Thank you for your report.
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Hi @engcom-Delta. Thank you for working on this issue.
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Just so you know, the problem is not only with null/string. There is also a problem with any other value type other than string. For example if value is int there will be the same error.
I found the same issue when I added the quote address custom attribute with int type. When setting this attribute value using setShippingAddressesOnCart and retrieving the shipping address it also failed.

from magento2.

Hi @zakdma ,

Verified the issue on 2.4-develop and we are not able to reproduce this issue.

Steps to reproduce:-

1.Install vanilla Magento
2.Create DropDown attribute with code test_ddl and options: Option 1, Option 2, Option 3 and Values Required: No
3.Set attribute parameters
Use in Search: Yes
Use in Layered Navigation: Filterable (with results)
Use in Search Results Layered Navigation: Yes
Visible on Catalog Pages on Storefront: Yes
Used in Product Listing: Yes
4.Add attribute test_ddl to default Attribute set
5.Create new product in admin with SKU simple-null
6.Add Price, Stock, Category. Set test_ddl to Option 1
7.Save product
8.Open edit product form again and change test_ddl to empty value
9.Open any graphql client and make query

created attribute

the values

added to default attribute set

product created and value saved to option 1

product edited value emptied and saved

no error

Please refer the attached screenshots and let us know if we missed anything.

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