Push query cannot contain $nin

[mtrezza]

Environment Setup

Push dashboard shows blank page when audience contains query with $nin field.

Steps to reproduce

1. Manually add a $nin to a query in the _Audience collection:
   "appVersion\":{\"$nin\":[\"1\",\"2\"]}
2. Open push dashboard => shows blank page

Suggested solution

If is it is not possible to add a $nin condition via the dashboard, it should not crash when such a condition is added manually.

Logs/Trace

[stale]

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