The atlas counted every trip as a visit, so a country you had merely booked
a flight to was stamped the same as one you came back from.
tripVisitStatus buckets a trip by its dates: already started (or running)
counts as visited, starting in the future is planned, and a trip with no
dates at all is an idea that must not reach the visit stats. The comparison
is UTC, matching the dashboard and journey lifecycles.
Requested in discussion #1048.
Maurice
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