[Geocoding] [OpenStreetMap] #4811: admin_level 7 and 8 not prioritized when they have the same name

[OpenStreetMap]

#4811: admin_level 7 and 8 not prioritized when they have the same name
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 Reporter:  windu2b    |      Owner:  geocoding@…
     Type:  defect     |     Status:  new
 Priority:  minor      |  Milestone:
Component:  nominatim  |    Version:
 Keywords:             |
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 If I search
 "[http://www.openstreetmap.org/?query=rue+Eug%C3%A8ne+boudin,+Caen rue
 Eugène Boudin, Caen]", first and second results are streets with the same
 name in other cities that Caen. The good result appears in third position.
 In fact, first, second and third results designate 3 cities
 (admin_level=8) in the same "french county" (admin_level=7), and the good
 city and the county have the same name : "Caen", but not the same
 admin_level (8 or 7), but Nominatim cares.

 Nominatim should prioritize by the city name before the county name.

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Ticket URL: <https://trac.openstreetmap.org/ticket/4811>
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