2.3-beta32: DB credentials are not updated in non-interactive mode by bin/magento setup:config:set

[aheadWorks]

Preconditions (*)

1. Magento 2.3 beta32
2. PHP 7.2

Steps to reproduce (*)

1. Try to update db settings with CLI in non-interactive mode(-n flag):
   bin/magento setup:config:set -n --db-host=$MYSQL_HOST --db-name=$MYSQL_DATABASE --db-user=$MYSQL_USER --db-password=$MYSQL_PASSWORD

Expected result (*)

1. DB credentials are updated at app/etc/env.php

Actual result (*)

1. DB credentials are not updated, no errors displayed. In interactive mode everything works as expected

[magento-engcom-team]

Hi @aheadWorks. 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 (for example: 2.3-develop).
For more details, please, review the Magento Contributor Assistant documentation.

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

• yes
• no

[aheadWorks]

@magento-engcom-team yes

[magento-engcom-team]

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

@engcom-backlog-nazar Thank you for verifying the issue. Based on the provided information internal tickets MAGETWO-96028 were created