by_user = defaultdict(lambda: 0)
by_email = defaultdict(lambda: 0)
names_by_email = defaultdict(set)
for change_model in (Chunk.change_model, Image.change_model):
for c in change_model.objects.filter(
by_user = defaultdict(lambda: 0)
by_email = defaultdict(lambda: 0)
names_by_email = defaultdict(set)
for change_model in (Chunk.change_model, Image.change_model):
for c in change_model.objects.filter(