When using dependent filters and selecting new filter values this automatically resets all filter values already chosen. Whilst this is desirable from a security perspective, not all models have security applied. The proposition here is to have a toggle or similar that the designer/owner of the dashboard can use to turn this behavior on/off. Thus the reset reasoning behind this can be maintained if required for that model or use case and the behavior can be turned off if non resetting is optimal for the use case needed.
