Merge branch 'fix-ponos-support-in-parse-dates' into 'master'

fix ponos support in parse dates

See merge request !280

arkindex/documents/management/commands/parse_dates.py

@@ -21,6 +21,7 @@ class Command(PonosCommand):
     base_recipe = settings.PONOS_RECIPE
 
     def add_arguments(self, parser):
+        super().add_arguments(parser)
         parser.add_argument(
             '--corpus',
             help='ID or part of the name of the corpus to fetch metadatas from',