Quantity change of Cart-Item clears Cart

[akimo]

Preconditions (*)

1. Magento Version 2.3.1
2. PHP 7.2

Upgraded from 2.3.0 - version without this issue

Steps to reproduce (*)

1. Put something in the cart
2. go to cart page
3. change the Quantity of a Cart Item
4. Press "Return" Key

This is reproducible, also when removing client storage and cookies. As Guest or Logged in Customer.

Expected result (*)

The cart-page should be reloaded with the modified quantities of items.

Actual result (*)

Your Cart is empty and a Message is displayed, which tells you that you don't have any items in your cart.

[m2-assistant]

Hi @akimo. 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.

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

• yes
• no

[akimo]

@magento-engcom-team give me 2.3.1 instance

[magento-engcom-team]

Hi @akimo. Thank you for your request. I'm working on Magento 2.3.1 instance for you

[magento-engcom-team]

Hi @akimo, here is your Magento instance.
Admin access: https://i-22137-2-3-1.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[akimo]

@magento-engcom-team Yes, i can confirm that the bug is reproducible on the vanilla Magento instance

[akimo]

Reason: The "return" key invokes the submit action of the Form. The "submit" action is bound to the Button "Clear Shopping Cart".

[m2-assistant]

Hi @shikhamis11. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).

  Details

  If the issue has a valid description, the label Issue: Format is valid will be added to the issue automatically. Please, edit issue description if needed, until label Issue: Format is valid appears.

• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue. If the report is valid, add Issue: Clear Description label to the issue by yourself.

• 3. Add Component: XXXXX label(s) to the ticket, indicating the components it may be related to.

• 4. Verify that the issue is reproducible on 2.3-develop branch

  Details

  - Add the comment @magento-engcom-team give me 2.3-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.3-develop branch, please, add the label Reproduced on 2.3.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

• 5. Verify that the issue is reproducible on 2.2-develop branch.

  Details

  - Add the comment @magento-engcom-team give me 2.2-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.2-develop branch, please add the label Reproduced on 2.2.x

• 6. Add label Issue: Confirmed once verification is complete.

• 7. Make sure that automatic system confirms that report has been added to the backlog.

[shikhamis11]

@magento-engcom-team give me 2.3-develop instance

[magento-engcom-team]

Hi @shikhamis11. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @shikhamis11, here is your Magento instance.
Admin access: https://i-22137-2-3-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[shikhamis11]

@akimo I am not able to reproduce this issue based on provided steps on current magento 2.3-develop instance let me know if it requires any additional step to reproduce the issue

[akimo]

This issue is new in 2.3.1 and not present in 2.3.0 (I don't know which version "2.3-develop" is based on). You need to press the return key while the cursor is still in the quantity field.
The Problem is caused by the Button "Clear Shopping Cart" which is of type="submit". If you press return the form will perform a "submit".