DOBISSUE date format changed after customer tries to register with sa…

[KaushikChavda]

Description

When DOB is enabled on the registration page and existing customer tries to re-registration page, DOB format was changed. See the screenshot.

Manual testing scenarios

1. Tested in my local environment and fixed issue.

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

Hi @miguelbalparda, thank you for the review.
ENGCOM-1625 has been created to process this Pull Request

[sidolov]

Hi @KaushikChavda , during QA activities we found issue with provided implementation, please, take a look:

Steps to reproduce:

• Enable DOB: Stores->Configuration->Customers->Customer Configuration->Show Date of Birth=Optional
• Create new customer with DOB.
• Go to My Account->Account Information.

Expected result:
Correct DOB format

Actual result:
Incorrect DOB format.

[KaushikChavda]

@sidolov Could you please provide me the magento version.

[sidolov]

@KaushikChavda sure, latest 2.2-develop

[KaushikChavda]

@sidolov I've fixed the issue.

[sidolov]

Hi @KaushikChavda , we found new issue with current solution:

On Create New Customer Account page DOB field always contains default date "1/1/1970" instead of empty field.

Steps to reproduce:

Enable DOB: Stores->Configuration->Customers->Customer Configuration->Show Date of Birth=Optional(or Required)
Go to Create New Customer Account page

Expected result:
Empty DOB field

Actual result:
DOB field contains default date "1/1/1970".

[KaushikChavda]

@sidolov,

I've tested on latest Magento branch 2.2.6 and latest 2.2-develop its working fine.

[miguelbalparda]

@magento-engcom-team give me test instance

[magento-engcom-team]

Hi @miguelbalparda. Thank you for your request. I'm working on Magento instance for you

[magento-engcom-team]

Hi @miguelbalparda, here is your Magento instance.
Admin access: https://pr-15272.engcom.dev.magento.com/admin
Login: admin Password: 123123q
Please make sure you are PR author or assignee to access the instance.

[miguelbalparda]

I was able to reproduce @sidolov issue in the test environment.

[magento-engcom-team]

Hi @KaushikChavda. Thank you for your contribution.
Changes from your Pull Request will be available with the upcoming 2.2.6 release.

Please, consider to port this solution to 2.3 release line.
You may use Porting tool to port commits automatically.