Undo/Redo unexpected behavior after importing from file about qupath

[SquidXTV]

I also noticed that if you just do the first two steps (loading image and objects) that you won't be able to undo loading the objects anyway. The undo action gets available after doing something else, even selecting and deleting an object.

Pretty weird to me, where is that undo action coming from? It is unrelated to actions later. I think it is storing a state with no objects at all somewhere.

[petebankhead]

QuPath's undo support is pretty bad - I spoke about it recently in this video: https://youtu.be/zFTnfv_XWg4?t=41

Fixing it properly will likely involve making some scarily-large changes to the core behavior, but we'll explore whether it can be made less bad in this specific scenario.

[SquidXTV]

Ah I see.

[..] but we'll explore whether it can be made less bad in this specific scenario.

No need for me specifically, I just noticed that issue, but it seems to be a larger issue with the current implementation anyway.

Thanks for the quick response.