Currently, a date_expression with operation="in_range" matches if the time is *after* start and *before* end. However if someone defines a range of 9AM to 10AM, they probably don't mean 9:00:01 to 09:59:59. Also, the logical meaning of "in range" would include the endpoints.

Since this is a change in behavior, it should be done at a minor or major series bump.

(This report was incorrect. It was only the documentation that needed updating.)