Hello @shubham maheshwari,
Thanks for reaching out.
I am unable to repro the issue from my side. As per the GitHub thread, it seems to be a bug.
I would recommend you raise a support case with Microsoft Graph, a Support Engineer will be able to assist you better. You can raise support ticket from http://aad.portal.azure.com/ or https://admin.microsoft.com/#/support/requests.
Hope this helps.
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