Some of JS validation rules making fields required

[VitaliyBoyko]

Hi, dear Magento Comunity Engineering team.
In some cases quite useful to have validation only for the filled fields. For example:
we have on the form field phone which is not required, but it required to have valid data when user will fill out this field. In case if a user did not fill out anything error should not be displayed.
Bunch of validation rules makes this not possible.

On the screenshot, I've selected more important validation rules for my opinion. Some of them work fine, others have unexpected behavior.

Here form source to more convenient reproducing.

Preconditions

1. Create a new module with form and field, or add a field to existing form
2. Set field validation, for example:
   <validation> <rule name="phoneUS" xsi:type="boolean">true</rule> </validation>
3. Field should not be required

Steps to reproduce

1. Don't fill out the field just submit a form

Expected result

1. The form is submitting as well

Actual result

1. Form not being submitted, field validation process error

[magento-engcom-team]

Hi @VitaliyBoyko. 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 {$VERSION} instance

where {$VERSION} is version tags (starting from 2.2.0+) or develop branches (2.2-develop +).
For more details, please, review the Magento Contributor Assistant documentation.

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

• yes
• no

[engcom-backlog-nickolas]

Hello @VitaliyBoyko, thank you for your report.
We've acknowledged the issue and added to our backlog.

[magento-engcom-team]

Hi @VitaliyBoyko. Thank you for your report.
The issue has been fixed in #16724 by @VitaliyBoyko in 2.2-develop branch
Related commit(s):

• e189fc97873278be4e4358565f022bd15276d64e
• 2ed9af37dee0e223b2cae2d22659564a3b472a74
• e71836be515b7e0eb15fb1806e34b4672dcd7740
• c6a8fec4eedd1fe4033c56f42010bef81e7e1c6f

The fix will be available with the upcoming 2.2.7 release.