Product attribute value labels not translated in Add to Cart form

Product attribute value labels displayed in the Add to Cart form dropdown are not translated.
For example, on a French language domain, the attribute select options still display in English.

The issue is in
ProductVariationAttributeMapper::getAttributeValues().
The method calls
$variation->getAttributeValue($field_name), which internally uses
CommerceContentEntityBase::ensureTranslations() to resolve the translation.

However, ensureTranslations() determines the target language based on the parent
variation entity's own language
($this->language()->getId() when translatable, or
getCurrentLanguage(TYPE_CONTENT) when not).
This is unreliable in several scenarios:

• When the variation entity is translatable but was loaded in the original language
• During AJAX requests where content language negotiation may not resolve correctly
• On sites using domain-based language negotiation

Meanwhile, in the same class, the attribute entity itself is correctly translated on line 89
using EntityRepository::getTranslationFromContext(), but the attribute values do not receive the same treatment.