Keyboard shortcut for “Don’t Save” in the Save Changes dialog no longer works

Issue: Keyboard shortcut for “Don’t Save” in the Save Changes dialog no longer works.
Steps to reproduce:

1. Make a new empty project, make a new comp, close the project to the trigger the Save Changes dialog.
2. Press command-D to trigger “Don’t Save”.

Expected result: Don’t Save should be triggered and the dialog goes away.
Actual result:

1. Nothing happens in the save dialog.
2. In the menubar, the Edit menu highlights because it probably thinks I’m triggering the keyboard shortcut for Edit > Duplicate.

Adobe After Effects version: 26.2.0, 26.2.1, 26.3.0b53
Operating system: MacOS 15.7.5

The shortcut works in AE 25.6.5. Escape (Cancel) and return/numpad-enter (Save) both work correctly.

While the dialog is open, opening menus shows that many menu commands are correctly disabled, but many are still actionable and their keyboard shortcuts are still trigger-able—even if none of them do anything other than quickly highlight the menu.