[Forwardport] Using Media Image custom attribute type could not display on frontend

[gelanivishal]

Original Pull Request

#19068

Description (*)

Using Media Image custom attribute type could not display on frontend. #19054

Fixed Issues (if relevant)

1. magento/magento2#Using Media Image custom attribute type could not display on frontend.  #19054: Using Media Image custom attribute type could not display on frontend
2. ...

Manual testing scenarios (*)

1. Create custom attribute named 'icon_image' of product from admin.
2. Set attribute type Media Image.
3. assign icon_image attribute in attribute set.
4. Update product image and set new role 'icon_image'.
5. In .phtml template ->

$productImageAttr = $product->getCustomAttribute( 'icon_image' );
$productImage = $this->helper('Magento\Catalog\Helper\Image')
->init($product, 'icon_image')
->setImageFile($productImageAttr->getValue());
<img src="<?php echo $productImage->getUrl() ?>" alt="<?php echo $block->escapeHtml($product->getTitle()) ?>" />

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 @gelanivishal. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

• @magento-engcom-team give me test instance - deploy test instance based on PR changes
• @magento-engcom-team give me 2.3-develop instance - deploy vanilla Magento instance

For more details, please, review the Magento Contributor Assistant documentation

[orlangur]

Didn't re-review semantics of this code, just assured it is identical to 2.2 version.

[magento-engcom-team]

Hi @orlangur, thank you for the review.
ENGCOM-3552 has been created to process this Pull Request

[Nazar65]

Hi @gelanivishal this issue occurs only in 2.2-develop branch.

[orlangur]

Thanks @Nazar65! Any idea why it works in 2.3.x? Wondering if we can have consistent fix across 2.2/2.3.

[Nazar65]

@orlangur I'm working on it now, when i will find why does it work in 2.3, I'm immediately let you know.

[orlangur]

This PR is not needed as the issue is not reproduced on 2.3.x.