[GREENFOOT-767] Changing class extends doesn't update class diagram
Create a class, say Car, which extends Actor, with no classes depending on it. It will appear in class diagram under Actor. Then modify the extends declaration to extend Object. It will stay under Actor in the diagram, rather than moving to the other-classes section. The reverse is also true: if you close and re-open Greenfoot with it extending Object, it will appear down the bottom, but changing back to extends Actor does not move it up to the actor section.
Related: if you change Car to extend Crab, it won't appear in the class diagram correctly, and when you hold shift to place one, it will use Crab's image not Car, even if Car has a specific image of its own. This may be corrected by fixing the above issue, but check afterwards.
- Issue type: Task
- Priority: Medium