Fix issue with missing method argument type

[lenaorobei]

Fixed issue:
"Warning: Declaration of CommunityEngineering\JapaneseName\Model\DataObject\Copy::setAttributeValueFromExtensibleDataObject($target, $code, $value) should be compatible with Magento\Framework\DataObject\Copy::setAttributeValueFromExtensibleDataObject(Magento\Framework\Api\ExtensibleDataInterface $target, $code, $value) in /var/www/html/vendor/community-engineering/module-japanese-name/Model/DataObject/Copy.php on line 19"

[smoskaluk]

@lenaorobei I got next error after creating Credit Memo for order with 1 item of simple product.

I've used local inviroment - magento branch 2.4-develop from https://github.com/magento/magento2.git repository + this PR branch - installed according manual here, with no 3 part modules enabled.
I'm working on PHP 7.2.26-1+ubuntu16.04.1+deb.sury.org+1 (cli) + chromium 79

[HirokazuNishi]

@smoskaluk Please provide your environment info as same as magento2 repository requests.

[lenaorobei]

@smoskaluk could you please check again?
If will fail please provide additional info, like did you change any configuration? What is the currency of the product?

[smoskaluk]

@lenaorobei
I checked again, and issue is still there.
I didn't any changes in configuration, all setting are by default, currency is JPY.
I do next:

1. Create simple product
2. Place order with it
3. Create Invoice for this order
4. Create Credit Memo
5. Open 'Credit Memo' tab on my order page in admin

[lenaorobei]

Thanks @smoskaluk, I was able to reproduce this bug and fix the issue.
Could you please check again? Please use 2.3-develop. This extension is not compatible with 2.4 yet, but we will work on it soon.

[smoskaluk]

I've checked, it works.