Subject: bug#74276: 30.0.90; undo does not account for overlays now that markers are not used

From: Stefan Monnier <[email-masked]>
Date: Sat, 09 Nov 2024 10:05:51 -0500

> Stefan, does undo restore overlays, and if so, how?

No, I don't think `undo` has ever tried to restore overlays.
But it does attempt to restore marker positions, so I guess there can be
cases where the switch to itree has caused overlays' boundaries to be
restored less well than before.

        Stefan