Place order button disabled after failed email address validation check with braintree credit card

[deepakgairola25]

Summary of the issue
Place order button is disabled after email address validation failed on selecting Braintree credit card and filling all the details except email address

Preconditions (*)

Magento vanila instance version 2.3

Steps to reproduce (*)

1. Add product to cart and proceed to checkout
2. leave email address field blank
3. Select Braintree credit card payment method
4. Input credit card number (dummy)
5. input expiry date and cvv
6. make sure that email id field is blank
7. fill customer data (name and address field)
8. Click update button
9. Click "Place order" button
10. Error for email address "This is a required field."
11. put email address
12. "Place order" button is disabled/not responsive

Expected result

1. Once email address is provided Place order button should be enabled

Actual result

1. Once email address is provided Place order button is still disabled
   

[magento-engcom-team]

Hi @deepakgairola25. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento-engcom-team give me 2.3-develop instance - upcoming 2.3.x release

For more details, please, review the Magento Contributor Assistant documentation.

@deepakgairola25 do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
• no

[magento-engcom-team]

Hi @engcom-backlog-nazar. Thank you for working on this issue.
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[magento-engcom-team]

✅ Confirmed by @engcom-backlog-nazar
Thank you for verifying the issue. Based on the provided information internal tickets MAGETWO-98858, MAGETWO-98859 were created

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