Deleting model elements in post-create hook causes NPE
Currently, deleting a model element that has just been created in a post-create hook causes a NPE in the respective create feature because the latter expects the model element to still exist.
As deletion in post-create hooks is widely used (e.g. in DIME) we should discuss whether to only fix the create hook to handle 'non-created' model elements or whether we introduce a pre-create hook for the specific purpose of enabling the Cinco developer to provide code to determine whether the respective model element should be added or not, in a 'canCreate' manner.
Discuss here: #90 (closed)