Resolve Knockout non-unique elements id in console error

[neeta-wagento]

When enabling more than one payment methods from admin, It is giving an error in the console "Found elements with non-unique id billing-address-form "

Description

Fixed Issues (if relevant)

1. Multiple Payment Methods Enabled is giving error in console "Found 3 Elements with non - unique Id" #15348:
2. Issue titleMultiple Payment Methods Enabled is giving error in console "Found 3 Elements with non - unique Id"

Manual testing scenarios

1. Login to Admin Panel > Sales> Payment Methods
2. Enable more than one of Magento payment methods for checkout
3. Add a product to the cart, press F12 to check the console log in the browser

Expected Result

It should not show any error in the console

Actual result

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)

[neeta-wagento]

Hello @miguelbalparda ,
Could you please let me know why it is from Merging In Progress to TODO in Community Pull Requests? as its label is "accept".

[VladimirZaets]

Hi @neeta-wagento, I working on your PR. Our internal tests are failed. Some functionality uses this ID, I will fix it and after that we will move PR to Merging In Progress again. Thanks

[magento-engcom-team]

Hi @neeta-wagento. 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.