Strapi updating schema from `inversedBy` to `mappedBy` on unrelated change

Sometimes when adding a field on a collection type, i can see strapi changed an unrelated field from inversedBy to mappedBy.

What is the reason and effect of this involuntary change?


I have just experienced the same with v4.1.12.
This caused ALL of my existing data GONE (of that field). It’s a terrible thing…