[Geocoding] [OpenStreetMap] #5247: Nominatim cannot find address with postal index.

[OpenStreetMap]

#5247: Nominatim cannot find address with postal index.
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 Reporter:  Dmitriy.Ovdienko@…  |      Owner:  geocoding@…
     Type:  defect              |     Status:  new
 Priority:  minor               |  Milestone:
Component:  nominatim           |    Version:
 Keywords:                      |
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 Search is not consistent. When you search something, copy result and try
 to search it again, Nominatem cannot find result again.

 Steps to reproduce:
 1. Search for "3, Świętego Tomasza, Krakow, Poland"
 2. Nominatim will return "3, Świętego Tomasza, Old Town, Cracow, Krakow,
 Lesser Poland Voivodeship, 31-014, Poland"
 3. Copy "3, Świętego Tomasza, Old Town, Cracow, Krakow, Lesser Poland
 Voivodeship, 31-014, Poland" and search it again.

 Expected result: same result as at step 2
 In fact: Empty result

 The reason of issue is index. If you will try search
 "3, Świętego Tomasza, Old Town, Cracow, Krakow, Lesser Poland Voivodeship,
 Poland", you will get the result.

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Ticket URL: <https://trac.openstreetmap.org/ticket/5247>
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