Reliability fix - Remove loop that could cause app to stop checking if data changes (#1313)

changedetectionio/fetch_site_status.py

@@ -92,6 +92,10 @@ class perform_site_check():
 
         # Pluggable content fetcher
         prefer_backend = watch.get_fetch_backend
+        # @todo move this to Watch model get_fetch_backend
+        if not prefer_backend:
+            prefer_backend =  self.datastore.data['settings']['application']['fetch_backend']
+
         if hasattr(content_fetcher, prefer_backend):
             klass = getattr(content_fetcher, prefer_backend)
         else: