Can you confirm when this happens that you do not have other Models on the page with records flagged for deletion? For instance, maybe add Tables to the page on the Aircraft Type, Airport, and Aircraft Models and check to see if they have rows that are flagged for deletion when you click to delete the Operation?

Woops…I’ll have to correct myself when I say that the 3 objects in the middle have no relation to the page. I’m loading a new row in each of those models, but never saving the values entered into them - only using user-entered values to apply them into filter conditions on one of the ‘relevant’ models.

The 3 models in the middle haven’t been marked for deletion though, which is the message I’m getting. They are simply new rows which may or may not have values in them but will not be saved to the server.

It’s as if the ‘delete’ action on the Opportunity object is registering that there are unsaved changes on other objects, and thinking that they have been marked for deletion…

…and to answer your actual question  it behaves as expected when the other models are removed from the page, ie it deletes the opportunity as expected without the additional options.

Still hasn’t been fixed. It should only display records marked for deletion not unsaved records.