Unclear interaction between revision count and age limits in NetBeans Local History

Determine how NetBeans Local History enforces its retention policy when both a maximum number of revisions per file and a maximum age are configured.

The documentation cites independent limits but does not specify whether purging is triggered by exceeding either limit, both limits, or a combined condition, nor whether the check occurs on each save or at IDE startup.

Does NetBeans purge entries when the revision count exceeds the limit regardless of age? Does it purge entries older than the age limit regardless of count? If both limits are set, which condition triggers purging first, or are they applied cumulatively?