Overpass API developpement

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Hi,
we have a minutely updated overpass database running since over a year
(v0.7.53).

All of a sudden, there are strange things, e.g. a lookup "is_in" of the
location lat: 49.75, lon: 10.17 Kitzingen in germany returns that it now lies
in Tunesia TN-83.

I have found nothing in the logs that helped me any further, is that something
that can happen in the minutely update? E.g. some corrupted updates..

If yes, is there a easy way to identify or even "repair" this state?

Or is the only way to throw everything away and start from scratch?

Sorry for the noob questions, but I never worked with the overpass server and
now I need to fix it ;-)

Any help appreciated and thanks in advance!

Best regards,
Sebastian