Undoing Manufacturing Model changes also undoes the Setup

[ltomuta]

Create a simple design, say a block with a counterbore hole in it.

Switch to Manufacture, create a manufacturing Model. Do nothing to it.

Create a new setup, Setup 1, which picks up the manufacturing model and the body within it as the model... All basic stuff.

Now edit the model and make some changes, for example remove the hole's face leaving only the counterbore part of the hole on the body. Close the manufacturing model. All looks good.

Now open the undo list to see what is on the undo stack. There are "Undo Delete" operation[s] that can be called and below it/them the "Undo Create Setup" command. Undo _just_ the delete commands.

Expected results: Manufacturing Model should return to initial state. Setup remains unchanged.

Actual results: Manufacturing model is restored, Setup1 is removed from Setups although it should still be there and it is still on the Undo stack, as it should. Only a subsequent Ctrl+Z should eventually remove it.

[ltomuta]

Drat, the issue was between chair and computer 🙂

Undoing the delete command gets us back in the Manufacturing Model edit mode and there the setup is not visible.
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