Back-End issue for multi-store website: when editing Order shipping/billing address - allowed countries are selected from wrong Store View

[svejegres]

Preconditions

1. Magento 2.1.10 CE & 2.3.x
2. PHP 7.0.22
3. MySQL 5.6

Steps to reproduce

1. Create multi-stores
2. Configure different 'Allow Countries' settings for different stores (Configuration > General > Country Options)
3. Go to Admin > Sales > Orders > Go to any order view page
4. Press "Edit" near Shipping Address: you will see the different values for Country dropdown.

Expected result

1. Address Country drop-down in Admin should take values from 'Allow Countries' setting configured for the Website Store View where that order was made (e.g.: for German store with id = 7)

Actual result

1. But it's picking the 'Allow Countries' from first store View (with id=1).
2. If before steps 3 and 4 from "Steps to reproduce" go to Admin > Sales > Create New Order and when creating it select some different Store View (e.g.: Italian, with id = 10) then actual result after "Steps to reproduce" will show allowed countries for that selected Store View (with id = 10, if continue on example).

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Similar issue was already mentioned here: #7036
And fixed here.

[magento-engcom-team]

@svejegres, thank you for your report.
We've created internal ticket(s) MAGETWO-85220 to track progress on the issue.

[ishakhsuvarov]

Hi @svejegres
We are closing this issue report now since the fix for the issue is delivered to 2.2-develop (should be released with 2.2.4).
You may check 506d500 for now to get more details on the fix.

Thank you for collaboration.

[DrewRobertson]

I'm still getting this problem on 2.3 CE, PHP 7.3