Prerequisites

• I understand and accept the project's code of conduct.
• I have already searched in existing issues and found no previous report of this bug.

Describe the bug and add attachments

Import makes category tree changes inside product, removes all categories except Main one. I have checked forum and found similar issue on older prestashop version #22336, but there Import feature removes Main category, so a little bit different case.

I just try to import CSV file with two columns (Refernce # and Feature), but it impacts on category tree inside product and remains only Main category.

Before IMPORT:

After IMPORT:

Expected behavior

I want the import not to affect the categories inside the product when adding information through the Import function

Steps to reproduce

1. Advanced parametrs
2. Import -> Products
3. Creating excel table with two columns (Reference # and Feature)
4. Select file -> products.csv
5. Use product reference as key -> ON (other checkbox off)
6. Next step -> mapping Reference, Feature
7. Import -> Successfuly done
8. Features appeared in product cards
9. All categories removed expect "Main category"

PrestaShop version(s) where the bug happened

8.1.1

PHP version(s) where the bug happened

8.1

If your bug is related to a module, specify its name and its version

No response

Your company or customer's name goes here (if applicable).

No response