From 5464ce370a916cefcd4a683cea7f2f08ac3fe91a Mon Sep 17 00:00:00 2001
From: Viktor Antropov <viktot14@gmail.com>
Date: Wed, 9 Sep 2026 14:28:30 +0300
Subject: [PATCH] =?UTF-8?q?fix:=20polygons=20=D1=83=D0=B6=D0=B5=20=D1=81?=
 =?UTF-8?q?=D0=BE=D0=B4=D0=B5=D1=80=D0=B6=D0=B8=D1=82=20polygon.coordinate?=
 =?UTF-8?q?s=20=E2=80=94=20MultiPolygon.coordinates=20=3D=20polygons?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/routers/water.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/routers/water.py b/backend/routers/water.py
index df3ae16..120a0fb 100644
--- a/backend/routers/water.py
+++ b/backend/routers/water.py
@@ -177,10 +177,10 @@ def _water_geoms(elements: list[dict]) -> list[dict]:
             if len(polygons) == 1:
                 geom = polygons[0]  # {'type': 'Polygon', 'coordinates': [ring]}
             else:
-                # GeoJSON MultiPolygon: собираем полигоны в один Multi.
+                # GeoJSON MultiPolygon: coordinates = список polygon.coordinates.
                 geom = {
                     'type': 'MultiPolygon',
-                    'coordinates': [p['coordinates'] for p in polygons],
+                    'coordinates': polygons,
                 }
             out.append({'layer': layer, 'name': name, 'geom': geom,
                         'area_m2': sum(areas),