crudEAV cannot handle "Use Default Value" about magento2-code-generator

[ioweb-gr]

I've noticed that even without "Use Default Value" if I resave the entity with an empty value on the store view level, the upper scope level value is deleted.

So in a tree like this

All Store Views (Value Default) 
|--Website (Value Website)
|----Store View 1 (Value Store View 1)
|----Store View 2 (Value Store View 2)

If I navigate to Store View 2 and save twice with an empty value

On the first save the "Value Store View 2" is deleted.
On the second save the "Value Website" is deleted even though I didn't change scope.

Any ideas what this bug is?