fix exporting bug

can't/shouldn't pop up confirmation message on export

pylib/anki/exporting.py

@@ -226,6 +226,7 @@ class AnkiExporter(Exporter):
             # need to reset card state
             self.dst.sched.resetCards(cids)
         # models - start with zero
+        self.dst.modSchema(check=False)
         self.dst.models.remove_all_notetypes()
         for m in self.src.models.all():
             if int(m["id"]) in mids: