Error at reorder for order with no longer existing customer group id.

[victortodoran]

Preconditions (*)

1. Magento 2.4

Steps to reproduce (*)

1. Fresh install
2. Create customer (via Admin Panel)
3. Create customer group
4. Associate customer (step 2) with recently created customer group (step3)
5. Place order for customer (step 2) (via Admin Panel)
6. Delete customer group (step 3)
7. Reorder order (step 5) (via Admin Panel)

Expected result (*)

1. After deleting customer group (step 6) customer (step 2) is assigned to default customer group
2. At reorder current customer group is used

Actual result (*)

1. After deleting customer group (step 6) customer (step 2) is assigned to default customer group
2. At reorder customer group from previous order (which no longer exists) is used
3. Error when quote is saved
   

Additional information(*)

Issue is from

\Magento\Sales\Model\AdminOrder\Create::initFromOrder

More specifically this line here

$this->getQuote()->setCustomerGroupId($order->getCustomerGroupId());

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Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @victortodoran. Thank you for your report.
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[m2-assistant]

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[magento-engcom-team]

✅ Confirmed by @engcom-Lima
Thank you for verifying the issue. Based on the provided information internal tickets MC-35806 were created

Issue Available: @engcom-Lima, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.

[m2-assistant]

Hi @engcom-Echo. Thank you for working on this issue.
Looks like this issue is already verified and confirmed. But if you want to validate it one more time, please, go though the following instruction:

• 1. Add/Edit Component: XXXXX label(s) to the ticket, indicating the components it may be related to.
• 2. Verify that the issue is reproducible on 2.4-develop branch
     Details

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• 3. If the issue is not relevant or is not reproducible any more, feel free to close it.

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[engcom-Echo]

Hi, @victortodoran. Thank you for your report.
Same the problem has already fixed after the merge (#28902).
Discussion of the issue here (#29220)

Please reopen and update if you wish to continue.
Thank you for your collaboration.