Catalog assets disappear when moved to another catalog with different master language

Description

When a catalog content is moved to another catalog with different default language setting, its assets disappear.

Steps to reproduce:

• Have two catalogs, one with 3 languages, en, sv, de which has sv as default language and one with de which has de as default language
• Add products to the catalog 2 (the “de”).
• Add assets.
• MOVE this product to the catalog 1.
• Now this product has Swedish as default language
• Go back to the sv version on catalog 1.

Actual: Assets tab is empty.