Price and VAT are cleared on parent product when price of new created variant is changed

[80Quattro]

Steps to reproduce:

• Add a product and set its price
• On CoreShopProduct set "allowInherit" and "allowVariants" to true
• Add a product variant and change its price
• The price of parent product will be set to 0

This appears to be a regression of #1486
This patch fixed the issue previously in CoreShop 2.2: https://github.com/coreshop/CoreShop/pull/1491/files

In the current version I've replaced the $storeValuesEntity = clone $storeValuesEntity; with $storeValuesEntity = new ProductStoreValues() and it seems to work correctly in my local environment. However, I don’t fully understand why "clone" doesn't work as expected.
I’m also not sure what the consequences might be if a completely new ProductStoreValues instance is created.

I can create a PR if my changes make sense.

[dpfaffenbauer]

@80Quattro please create a PR and lets see if the tests still run

[80Quattro]

@dpfaffenbauer I see Copilot has already created the patch I meant. I've detected that error in CoreShop v4.1 and tested this patch for v4.0 & v4.1. I don't know how it will behave in v5.0

[dpfaffenbauer]

v5 is the same, so will work there too