CURA-4895 Connect timer signal just if CuraApplication has been previously created and started

plugins/AutoSave/AutoSave.py

@@ -23,7 +23,6 @@ class AutoSave(Extension):
         self._change_timer = QTimer()
         self._change_timer.setInterval(Preferences.getInstance().getValue("cura/autosave_delay"))
         self._change_timer.setSingleShot(True)
-        self._change_timer.timeout.connect(self._onTimeout)
 
         self._saving = False
 
@@ -46,6 +45,7 @@ class AutoSave(Extension):
             self._init_timer.start()
             return
 
+        self._change_timer.timeout.connect(self._onTimeout)
         Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
         self._onGlobalStackChanged()
 
@@ -67,15 +67,6 @@ class AutoSave(Extension):
             self._global_stack.containersChanged.connect(self._triggerTimer)
 
     def _onTimeout(self):
-        # only initialise if the application is created and has started
-        from cura.CuraApplication import CuraApplication
-        if not CuraApplication.Created:
-            self._change_timer.start()
-            return
-        if not CuraApplication.getInstance().started:
-            self._change_timer.start()
-            return
-
         self._saving = True # To prevent the save process from triggering another autosave.
         Logger.log("d", "Autosaving preferences, instances and profiles")