From c368482d1c6720e4f32063f8be3f73ec52aa5f9e Mon Sep 17 00:00:00 2001
From: Viktor Antropov <viktot14@gmail.com>
Date: Wed, 9 Sep 2026 14:32:31 +0300
Subject: [PATCH] =?UTF-8?q?fix:=20relation=20=D1=81=20=D0=BE=D0=B4=D0=BD?=
 =?UTF-8?q?=D0=B8=D0=BC=20=D0=BA=D0=BE=D0=BB=D1=8C=D1=86=D0=BE=D0=BC=20?=
 =?UTF-8?q?=E2=80=94=20geom=20=D0=BA=D0=B0=D0=BA=20dict,=20=D0=BD=D0=B5=20?=
 =?UTF-8?q?coordinates-=D1=81=D0=BF=D0=B8=D1=81=D0=BE=D0=BA?=
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polygons.append(poly['coordinates']) хранит [ring]; при 1 кольце
geom=polygons[0] отдавал голый список (не dict) → pydantic dict_type
валидация GeoFeature падала 500. Теперь ветки собирают dict явно.
---
 backend/routers/water.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/routers/water.py b/backend/routers/water.py
index 120a0fb..5085b5f 100644
--- a/backend/routers/water.py
+++ b/backend/routers/water.py
@@ -175,7 +175,7 @@ def _water_geoms(elements: list[dict]) -> list[dict]:
             if not polygons:
                 continue
             if len(polygons) == 1:
-                geom = polygons[0]  # {'type': 'Polygon', 'coordinates': [ring]}
+                geom = {'type': 'Polygon', 'coordinates': polygons[0]}
             else:
                 # GeoJSON MultiPolygon: coordinates = список polygon.coordinates.
                 geom = {