Fix bug in `get_meteor_ids()` which caused extra database hits.
Fix bug in `get_meteor_ids()` which caused extra database hits.

commoncode/django-ddp,commoncode/django-ddp,django-ddp/django-ddp,django-ddp/django-ddp,commoncode/django-ddp,django-ddp/django-ddp,django-ddp/django-ddp,commoncode/django-ddp