Error on checkout if customer selects billing address and image address attribute is present

[magento-engcom-team]

Customer can not checkout if he selects billing address which differs from shipping one and custom customer address attribute of image type is present

Steps to Reproduce:

1. Login as Admin
2. Create new custom customer address attribute (Store -> Attributes -> Customer Address):
   #* Type = Image
3. On Frontend create customer
4. Add default address (for both shipping and billing) and upload some image to newly created attribute
5. Add another address
6. Start checkout process
7. Select some address at shipping step
8. Pass to payments step
9. Untick checkbox 'My billing and shipping address are the same'
10. Select some address from dropdown
11. Click Update button

Actual Result:
(-) A piece of code is shown (see screenshot)

Expected Result:
(/) Values for all attributes are shown correctly
(/) Customer is able to finish checkout process successfully

[magento-engcom-team]

The issue was exported from the internal JIRA. The link to the original JIRA issue: https://jira.corp.magento.com/browse/MC-33704

[m2-assistant]

Hi @magento-engcom-team. Thank you for your report.
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• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

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[magento-engcom-team]

✅ Confirmed by @magento-engcom-team
Thank you for verifying the issue. Based on the provided information internal tickets MC-33704 were created

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