Repeated "time zone updated" notifications when "Automatic Time Zone" enabled

I left a terminal session tailing `/var/log/syslog` to track what's happening at the time when the notification shows up, and indeed managed to observe it happen again, with a fragment of system logs found below. Looks like NetworkManager fires off a `CONNECTED_SITE` state change, and the location is updated -> notification fires, even if timezone has not changed.

I think the condition that triggers the unnecessary notification is the _location_ changing even if the timezone has not changed, and for whatever reason the location keeps flickering between either Denmark or Germany (both in CET).

Here goes the log example:

```
May 2 15:19:41 iris NetworkManager[4609]: <info> [1651493981.4907] manager: NetworkManager state is now CONNECTED_SITE
May 2 15:19:41 iris dbus-daemon[4607]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.10' (uid=0 pid=4609 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
May 2 15:19:41 iris systemd[1]: Starting Network Manager Script Dispatcher Service...
May 2 15:19:41 iris dbus-daemon[4607]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
May 2 15:19:41 iris systemd[1]: Started Network Manager Script Dispatcher Service.
May 2 15:19:41 iris NetworkManager[4609]: <info> [1651493981.7719] manager: NetworkManager state is now CONNECTED_GLOBAL
May 2 15:19:46 iris wpa_supplicant[4694]: TDLS: Invalid frame - payloadtype=1 category=240 action=26
May 2 15:19:51 iris systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.
May 2 15:19:52 iris gsd-datetime[7371]: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
May 2 15:19:52 iris gsd-datetime[7371]: message repeated 71 times: [ g_object_ref: assertion 'G_IS_OBJECT (object)' failed]
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May 2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May 2 15:...

Status changed to 'Confirmed' because the bug affects multiple users.

I am having this happen to me as well in the past few days. If this is an old bug then why did I just suddenly start having the issue?

Nov 4 06:47:25 : gweather_location_get_city_name: assertion 'loc != NULL' failed
Nov 4 06:47:25 : gweather_location_get_country: assertion 'loc != NULL' failed
Nov 4 06:47:25 : gweather_location_has_coords: assertion 'loc != NULL' failed

Operating System: Ubuntu 22.04.1 LTS
          Kernel: Linux 6.0.5-060005-generic
    Architecture: x86-64
 Hardware Vendor: HP
  Hardware Model: HP Spectre x360 2-in-1 Laptop 14-ef0xxx