IndexError: list index out of range in aggregaterule plugin

[rudexi]

The following error sometimes happen:

2022-04-20 11:16:24,630 snooze               ERROR    list index out of range
Traceback (most recent call last):
  File "/opt/snooze/lib/python3.6/site-packages/snooze/core.py", line 125, in process_record
    record = plugin.process(record)
  File "/opt/snooze/lib/python3.6/site-packages/snooze/plugins/core/aggregaterule/plugin.py", line 34, in process
    record = self.match_aggregate(record, aggrule.throttle, aggrule.flapping, aggrule.watch, aggrule.name)
  File "/opt/snooze/lib/python3.6/site-packages/snooze/plugins/core/aggregaterule/plugin.py", line 60, in match_aggregate
    aggregate = aggregate_result['data'][0]
IndexError: list index out of range

https://github.com/snoozeweb/snooze/blob/v1.4.0/snooze/plugins/core/aggregaterule/plugin.py#L60

We're in a situation where Database.search() returns a dict with a data and a count that do not correspond to each other.
Maybe it's better to drop that count. Both python and javascript can access an array length in a cheap manner.