Issue Fixed: #8086: Multiline admin field is broken

[vivekkumarcedcoss]

Description (*)

Fixed Issues (if relevant)

1. Multiline admin field is broken #8086: Multiline admin field is broken
2. Multiline field is broken #18115

Manual testing scenarios (*)

1. Add field type="multiline" in system config in admin.
2. Save values in multiple fields

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 @vivekkumarcedcoss. Thank you for your contribution
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[aleron75]

Hello @vivekkumarcedcoss thanks for your contribution.

Once merged, don't forget you can easily port this PR (if needed) to other branches with the Porting Tool, read more here.

[magento-engcom-team]

Hi @aleron75, thank you for the review.
ENGCOM-3924 has been created to process this Pull Request

[magento-engcom-team]

@vivekkumarcedcoss thank you for contributing. Please accept Community Contributors team invitation here to gain extended permissions for this repository.

[ghost]

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