Undo view-only mode (go back without accidentally rewriting history)

[man-trackunit]

Accidentally rewriting history sucks

Super common to cmd+z to find snippet one deleted a few minutes ago because it turns out you need it after all, and then cmd+z forward again. This works OK if you make absolutely sure to not accidentally hit a single unintended key in the process, which would make you unable to go forward again.

I propose you add a modifier key to cmd+z, maybe cmd+alt+z that does throws up a dialog that you must accept before overwriting history. Thanks!

[hediet]

Related: #20889.

[NotWearingPants]

This is #4873

What else do you need but a toggle for read-only mode? Toggle on, ctrl+z a bunch, find what you were looking for, ctrl+y back to present, toggle off.