Module break commerce widgets

Problem/Motivation

When using commerce, i cannot edit some variation widgets in commerce order item anymore.

D11.2.2
Commerce 3.1.0

Steps to reproduce

• Enable Commerce and Commerce order modules.
• Set default order and order item if it doesn't exist yet
• Go to /admin/commerce/config/order-item-types/default/edit/form-display/add_to_cart
• Set "Purchased entity" widget to "Product variation title" and edit widget.

See error in console :

TypeError: Drupal\commerce_product\Plugin\Field\FieldWidget\ProductVariationWidgetBase::loadEnabledVariations(): Argument #1 ($product) must be of type Drupal\commerce_product\Entity\ProductInterface, null given, called in /var/www/html/web/modules/contrib/commerce/modules/product/src/Plugin/Field/FieldWidget/ProductVariationAttributesWidget.php on line 97 in Drupal\commerce_product\Plugin\Field\FieldWidget\ProductVariationWidgetBase->loadEnabledVariations() (line 171 of modules/contrib/commerce/modules/product/src/Plugin/Field/FieldWidget/ProductVariationWidgetBase.php).