Hints for some custom shortcuts are missing (e.g. in menus, tooltips)

Steps to reproduce:

• open Inkscape
• open the preferences dialog
• Go to Interface > Keyboard
• Set the pen tool to Alt+P and the group tool to Alt+G (or whatever shortcuts you want)
• Restart Inkscape
• Go to the Objects Menu or hover over the pen tool icon

What happened?

• Shortcut hint is missing, despite display="true" being set in the default.xml file

What should have happened?

• Shortcut hint is present

Version Info:

• Inkscape 1.2-dev (159f7c9d, 2021-05-12) Linux Mint 20
• 1.1.rc in inbox#4911 (closed) Edit: oops, misread their comment. Replicated by my in 1.1rc though
• Bisection points to 1bc3186c

Author: Tavmjong Bah <tavmjong@free.fr>
Date:   Mon Oct 26 11:30:05 2020 +0000

    Shortcut refactoring:
    * On initializing, user shortcuts override default shortcuts.
    * Warn if shortcuts are overridden.
    * If shortcut overridden, do not delete alternative shortcuts for old verb/action.
    * Remove redundant shortcuts in inkscape.xml.