KVB profile fails with journeys between two local stations

[akloeckner]

When integrating the work from #28 into my use case, I found that journeys between two local stations result in a JourneysArrivalDepartureTooNearError exception. As soon as one of the stations is a long-distance station, the journeys are retrieved, but seem to take a detour using a long-distance product.

With the DBProfile, this is not an issue.

I do not understand what is happening. But maybe it's more obvious to you. Here's a test script:

import datetime

from pyhafas import HafasClient
from pyhafas.profile import KVBProfile

kvb = HafasClient(KVBProfile())

# This works: Two long-distance stations
departures   = kvb.locations('Köln Hbf')
destinations = kvb.locations('Bahnhof Deutz/Messe')

# This also works: Still one long-distance station
# But: The journey takes a detour through Köln Hbf, although there is a direct stadtbahn connection.
departures   = kvb.locations('Köln Heumarkt')

# This breaks: Two local stations only
# Result: pyhafas.types.exceptions.JourneysArrivalDepartureTooNearError: HAFAS Kernel: No connection found
destinations = kvb.locations('Deutzer Freiheit')

departure = departures[0]
destination = destinations[0]

print(departure)
print(destination)

journeys = kvb.journeys(
        origin=departure,
        destination=destination,
        date=datetime.datetime.now(),
        min_change_time=0,
        max_changes=-1
)

print(journeys)

@1Maxnet1, I'm tagging you as the author of #28 . (Thanks again!) Maybe you have an idea?