Do not safe data after restoring backup

cura/Backups/Backup.py

@@ -34,6 +34,9 @@ class Backup:
 
         Logger.log("d", "Creating backup for Cura %s, using folder %s", cura_release, version_data_dir)
 
+        # Ensure all current settings are saved.
+        CuraApplication.getInstance().saveSettings()
+
         # We're using an easy to parse filename for when we're restoring edge cases:
         # TIMESTAMP.backup.VERSION.cura.zip
         archive = self._makeArchive(version_data_dir)

cura/Backups/BackupsManager.py

@@ -44,7 +44,8 @@ class BackupsManager:
         restored = backup.restore()
         if restored:
             # At this point, Cura will need to restart for the changes to take effect.
-            CuraApplication.getInstance().windowClosed()
+            # We don't want to store the data at this point as that would override the just-restored backup.
+            CuraApplication.getInstance().windowClosed(safe_data=False)
 
     def _disableAutoSave(self):
         """Here we try to disable the auto-save plugin as it might interfere with restoring a backup."""

cura/CuraApplication.py

@@ -497,10 +497,10 @@ class CuraApplication(QtApplication):
     ##  Cura has multiple locations where instance containers need to be saved, so we need to handle this differently.
     #
     #   Note that the AutoSave plugin also calls this method.
-    def saveSettings(self):
-        if not self.started: # Do not do saving during application start
+    def saveSettings(self, safe_data: bool = True):
+        if not self.started or not safe_data:
+            # Do not do saving during application start or when data should not be safed on quit.
             return
-
         ContainerRegistry.getInstance().saveDirtyContainers()
 
     def saveStack(self, stack):