Form not handling modifiers correctly for embedded entities.

[LukasStordeur]

There is an error in how the instance form handles modifiers. The relation is rw+ so that means that the form allows to add or delete slices (this is correct). However, for the new slices it applies the edit logic. I also include a database dump here so you can get this form as well.

Link to DumpDB

[LukasStordeur]

Currently, we get set the editable state of a field based on the attributeModel. Each field only cares about the current value, original and default value, and what kind of modifier is present in the attributeModel. This means that an input field isn't aware if it's part of a dict or not, or if it's a new item from a dict or not that should allow editing the values.

To add awareness is possible, but would require a fair amount of effort and changes. Currently not the highest on the priority list, but needs to be resolved either way.