Finality of the "Don't Ask Again" functionality?

When I delete a slide, layer, trigger, etc. in SL2, I am prompted to verify the deletion.  This is a great functionality, since sometimes the deletion was inadvertent.  The verification box includes a checkbox option: "don't ask again."  If I select that before confirming the deletion, how permanent is that preference?  Does it re-set to the default (showing the verification box) upon..... moving to a new slide? closing / reopening the program? never?

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