[PostGIS] #5782: TopoGeo_addLinestring corrups topology: adjacent edges 33 and -32 bind different face (1 and 0)

[PostGIS]

#5782: TopoGeo_addLinestring corrups topology: adjacent edges 33 and -32 bind
different face (1 and 0)
--------------------------------+---------------------------
  Reporter:  Lars Aksel Opsahl  |      Owner:  strk
      Type:  defect             |     Status:  new
  Priority:  high               |  Milestone:  PostGIS 3.4.4
 Component:  topology           |    Version:
Resolution:                     |   Keywords:
--------------------------------+---------------------------
Comment (by Lars Aksel Opsahl):

 Replying to [comment:32 strk]:
 > I confirm PostGIS minimum distance calculation is currently constructing
 the closest point first and then computing the distance from that point,
 which is what is causing this robustness issue. PR
 https://git.osgeo.org/gitea/postgis/postgis/pulls/222 is changing that and
 fixes the issue at hand, giving the same answers as GEOS:
 >

 Nice, tested now your branch mindistance-no-construct-point and confirms
 that test /topology_test_01.sql works with no errors running on

 {{{
 POSTGIS="3.6.0dev 3.5.0-9-g181859475" [EXTENSION] PGSQL="160"
 GEOS="3.13.0-CAPI-1.19.0" PROJ="8.2.1 NETWORK_ENABLED=OFF
 URL_ENDPOINT=https://cdn.proj.org USER_WRITABLE_DIRECTORY=/tmp/proj
 DATABASE_PATH=/usr/share/proj/proj.db" (compiled against PROJ 8.13.0)
 LIBXML="2.9.13" LIBJSON="0.13.1" LIBPROTOBUF="1.3.3" WAGYU="0.5.0
 (Internal)" TOPOLOGY
 }}}

 For test topology_test_02.sql ​https://gitlab.com/nibioopensource/resolve-
 overlap-and-gap/-/blob/84-error-xx000-corrupted-topology-adjacent-
 edges-33-and-32-bind-different-
 face-1-and-0/src/test/sql/regress/topology_test_02.sql?ref_type=heads I
 get this error in the same database as above .

 The error I get is


 {{{
 ERROR:  XX000: Side-location conflict: new edge starts in face 37 and ends
 in face 10

 }}}

 Is that expected ?
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5782#comment:33>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.