"Patch Update Manager (for Ubuntu 23.04+ Desktop only)" doesn't seem to work for 24.04

[gc-user]

After installing UnspamifyUbuntu on Xubuntu 24.04 (well, maybe it was preserved during the upgrade from 22.04) the settings of the update manager aren't accessible anymore. Just like in 22.04. I tried applying the "Patch Update Manager (for Ubuntu 23.04+ Desktop only)" patch, but the dry run gave 2 errors, just like here.

Hunk #1 FAILED at 44.
Hunk #2 FAILED at 278.
Hunk #3 succeeded at 481 (offset 22 lines).

I tried to manually comment out the respective lines (which are now slightly different from what the patch is looking for), but that didn't help. So, for now, I ran out ideas of what to test next...

Thanks for looking into this!

Btw., the respective lines in /usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py now read:

1:
instead of
4-44:

   from uaclient.api.u.pro.packages.updates.v1 import updates

now:
28:

   import uaclient.api.u.pro.packages.updates.v1 as ua

2:
instead of
278-288:

   def _get_ua_security_status(self):
     self.ua_security_packages = []
     try:
         update_result = updates()
     except (IOError, OSError):
         return
     for info in update_result.updates:
         if info.status == "pending_attach":
             self.ua_security_packages.append(
                 (info.package, info.version, info.download_size)
             )

now:
283-310:

   def _get_ua_security_status(self):
    self.ua_security_packages = []
    t = threading.Thread(target=self._fetch_ua_updates, daemon=True)
    t.start()
    while t.is_alive():
        while Gtk.events_pending():
            Gtk.main_iteration()
        time.sleep(0.05)
    for package in self.ua_updates:
        if (
            package.provided_by == 'standard-security'
            or package.provided_by == 'standard-updates'
        ):
            continue
        status = package.status
        if (
            status == 'pending_attach'
            or status == 'pending_enable'
            or status == 'upgrade_available'
        ):
            name = package.package
            version = package.version
            size = package.download_size
            downloadable = status == 'upgrade_available'
            self.ua_security_packages.append(
                (name, version, size, downloadable)
            )
    self.cache.create_pro_cache(self.ua_security_packages)

3 is the the same, but in line 481 instead of 459:

    self._get_ua_security_status()