[SCM] PostGIS branch master updated. 3.6.0rc2-432-g7e3d523cd

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- Log -----------------------------------------------------------------
commit 7e3d523cda37faa3efdb8daed91e73df6a9fe864
Author: Sandro Santilli <strk at kbt.io>
Date:   Tue Apr 7 23:53:43 2026 +0200

    Use long double during signed area computation, improving robustness
    
    Fixes #6065 in 3.7.0dev
    Includes regression test

diff --git a/NEWS b/NEWS
index a0a1146c4..5d3de8494 100644
--- a/NEWS
+++ b/NEWS
@@ -36,6 +36,11 @@ This version requires GEOS 3.10 or higher
  - #2614, Use GEOSPreparedDistance and caching to accelerate ST_DWithin (Paul Ramsey)
  - GH-839, ST_Multi support for TIN and surfaces (Loïc Bartoletti)
 
+* Enhancements *
+
+ - #6065, Improved winding order computation robustness for rings having collapsed elements
+          (Sandro Santilli)
+
 * Bug Fixes *
 
  - Build PostgreSQL extension modules with `-fno-semantic-interposition` when
diff --git a/liblwgeom/ptarray.c b/liblwgeom/ptarray.c
index 54cfe875e..df5782adb 100644
--- a/liblwgeom/ptarray.c
+++ b/liblwgeom/ptarray.c
@@ -1080,7 +1080,7 @@ ptarray_signed_area(const POINTARRAY *pa)
 	const POINT2D *P1;
 	const POINT2D *P2;
 	const POINT2D *P3;
-	double sum = 0.0;
+	long double sum = 0.0;
 	double x0, x, y1, y2;
 	uint32_t i;
 
diff --git a/topology/test/regress/validatetopology.sql b/topology/test/regress/validatetopology.sql
index 173e4a5b1..aa852bb0d 100644
--- a/topology/test/regress/validatetopology.sql
+++ b/topology/test/regress/validatetopology.sql
@@ -222,3 +222,24 @@ ROLLBACK;
 
 SELECT NULL FROM topology.DropTopology('city_data');
 
+-- See https://trac.osgeo.org/postgis/ticket/6065
+BEGIN;
+SELECT NULL FROM topology.CreateTopology ('t6065');
+INSERT INTO t6065.node (node_id, geom) VALUES
+( 1, 'POINT(17.42207545158684 69.11091383590066)' ),
+( 2, 'POINT(17.622976580401446 69.12848944101118)' ),
+( 3, 'POINT(17.42207545158653 69.11091383590062)' ),
+( 4, 'POINT(17.422075702665087 69.11091383235977)' );
+INSERT INTO t6065.face (face_id, mbr)
+VALUES
+( 1, 'POLYGON((17.42207545158684 69.11091383235974,17.42207545158684 69.11091383590066,17.422075702665087 69.11091383590066,17.422075702665087 69.11091383235974,17.42207545158684 69.11091383235974))' ),
+( 2, 'POLYGON((17.42207545158653 69.11091383235974,17.42207545158653 69.12848944101118,17.622976580401446 69.12848944101118,17.622976580401446 69.11091383235974,17.42207545158653 69.11091383235974))' );
+INSERT INTO t6065.edge (edge_id,start_node,end_node,next_left_edge,next_right_edge,left_face,right_face,geom)
+VALUES
+( 1,1,4,3,4,2,1,'LINESTRING(17.42207545158684 69.11091383590066,17.422075702665087 69.11091383235977)' ),
+( 2,3,1,1,2,2,2,'LINESTRING(17.42207545158653 69.11091383590062,17.42207545158684 69.11091383590066)' ),
+( 3,4,2,-3,-4,2,2,'LINESTRING(17.422075702665087 69.11091383235977,17.579930758184094 69.12294910230447,17.622976580401446 69.12848944101118)' ),
+( 4,1,4,-1,-2,1,2,'LINESTRING(17.42207545158684 69.11091383590066,17.42207570266477 69.11091383235974,17.422075702665087 69.11091383235977)' );
+SELECT '#6065', 'invalidities', * FROM topology.ValidateTopology('t6065');
+ROLLBACK;
+
diff --git a/topology/test/regress/validatetopology_expected b/topology/test/regress/validatetopology_expected
index da497ee20..5f667e048 100644
--- a/topology/test/regress/validatetopology_expected
+++ b/topology/test/regress/validatetopology_expected
@@ -46,3 +46,4 @@
 #5766.2|no bbox|("face has wrong mbr",0,)
 #5766.2|overlapping bbox|("face has wrong mbr",0,)
 #5766.2|disjoint bbox|
+#6065|invalidities|hole not in advertised face|-4|

-----------------------------------------------------------------------

Summary of changes:
 NEWS                                            |  5 +++++
 liblwgeom/ptarray.c                             |  2 +-
 topology/test/regress/validatetopology.sql      | 21 +++++++++++++++++++++
 topology/test/regress/validatetopology_expected |  1 +
 4 files changed, 28 insertions(+), 1 deletion(-)


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