I was hoping to completely nix the generic materials model (since it's basically just a brand "Generic", but then in the QML it has to be have the same in terms of sub-menus or fold-outs and that looked stupid (Generic -> ABS -> ABS)). So we keep that one for now. It is cleaner though.
Contributes to CURA-5162, CURA-5378
when the extruder stack changes.
- What happen was that when the extruder model needed to update, the
material model was not updated correctly and so when changing a material, the
node was incorrect.
