diff -Nru software-properties-0.96.24.32.21/debian/changelog software-properties-0.96.24.32.22/debian/changelog
--- software-properties-0.96.24.32.21/debian/changelog	2023-02-03 11:31:57.000000000 +0000
+++ software-properties-0.96.24.32.22/debian/changelog	2023-02-16 20:10:38.000000000 +0000
@@ -1,3 +1,10 @@
+software-properties (0.96.24.32.22) bionic; urgency=medium
+
+  [ Nathan Pratta Teodosio ]
+  * fix a problem in the fix backported in the previous revision
+
+ -- Sebastien Bacher <seb128@ubuntu.com>  Thu, 16 Feb 2023 21:10:38 +0100
+
 software-properties (0.96.24.32.21) bionic; urgency=medium
 
   [ Nathan Pratta Teodosio ]
diff -Nru software-properties-0.96.24.32.21/softwareproperties/gtk/DialogUaAttach.py software-properties-0.96.24.32.22/softwareproperties/gtk/DialogUaAttach.py
--- software-properties-0.96.24.32.21/softwareproperties/gtk/DialogUaAttach.py	2023-02-03 11:31:57.000000000 +0000
+++ software-properties-0.96.24.32.22/softwareproperties/gtk/DialogUaAttach.py	2023-02-16 20:10:38.000000000 +0000
@@ -173,7 +173,8 @@
             print("Error retrieving magic token: ", e)
             return
         self.update_state()
-        threading.Thread(target=self.poll_for_magic_token, daemon=True).start()
+        self.poll = threading.Thread(target=self.poll_for_magic_token, daemon=True)
+        self.poll.start()
 
     def on_radio_toggled(self, button):
         self.update_state()
@@ -193,7 +194,8 @@
                 self.start_magic_attach()
             elif self.poll == None:
                 # wait() timed out without internet; Restart polling.
-                self.poll = GLib.Thread.new("poll", self.poll_for_magic_token)
+                self.poll = threading.Thread(target=self.poll_for_magic_token, daemon=True)
+                self.poll.start()
 
     def finish(self):
         self.dialog.response(Gtk.ResponseType.OK)