tweaks doesn't launch

[Lucio Costa]

Gnome-tweaks doesn't launch on Ubuntu 21.10 (20-07-2021 daily build). Nothing happens through the app launcher and through the terminal, the following message appears:

lucio@lucio-acer:~$ gnome-tweaks
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gtweak/app.py", line 30, in do_activate
    self.win = Window(self, model)
  File "/usr/lib/python3/dist-packages/gtweak/tweakview.py", line 58, in __init__
    self._model.load_tweaks(self)
  File "/usr/lib/python3/dist-packages/gtweak/tweakmodel.py", line 107, in load_tweaks
    mods = __import__("gtweak.tweaks", globals(), locals(), tweak_files, 0)
  File "/usr/lib/python3/dist-packages/gtweak/tweaks/tweak_group_font.py", line 104, in <module>
    FontXSettingsTweak(),
  File "/usr/lib/python3/dist-packages/gtweak/tweaks/tweak_group_font.py", line 32, in __init__
    self.btn_full.set_active(self.settings["hinting"] == "full")
  File "/usr/lib/python3/dist-packages/gi/overrides/Gio.py", line 259, in __getitem__
    raise KeyError('unknown key: %r' % (key,))
KeyError: "unknown key: 'hinting'"

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: gnome-tweaks 3.34.0-4
ProcVersionSignature: Ubuntu 5.11.0-20.21+21.10.1-generic 5.11.21
Uname: Linux 5.11.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu67
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: GNOME
Date: Tue Jul 20 15:55:41 2021
InstallationDate: Installed on 2021-07-20 (0 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Alpha amd64 (20210720)
PackageArchitecture: all
SourcePackage: gnome-tweaks
UpgradeStatus: No upgrade log present (probably fresh install)

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1935569, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report.

Feel free to continue to report any other bugs you may find.