System check identified some issues:
base.Post.tags: (fields.W340) nullhas no effect on ManyToManyFieldpython3.6/site-packages/django/db/migrations/recorder.py", line 76, in applied_migrations
if self.has<
ActionMode mode) { ListView lv = getListView(); lv.setChoiceMode(ListView.CHOICE_MODE_NONE); // Has no effect on the highlighted itemlv.setFocusable(false); /