I am doing dry runs before final migration from Magento 126.96.36.199 to 2.4.2. I have configured the migration tool so that I don't import products, only customer data and orders. But my problem is that after I run the migration all my changes to custom attributes gets reset. The products are left untouched, but the attribute settings (most importantly my custom dropdown attributes) are overwritten or removed.
So i.e. if my M1 products had Manufacturer attribute like this:
45 - Lada
46 - Volkswagen
And I change this in M2 to
45 - Maserati
46 - Ferrari
This works fine until migrating orders and customer data again, and I'm stuck with Lada and Volkswagen :( Is there something I can ignore somewhere in the migration XMLs to keep my Maseratis and Ferraris?