[postgis-tickets] [PostGIS] #3263: ST_PreserveTopology breaks narrow polygon

[PostGIS]

#3263: ST_PreserveTopology breaks narrow polygon
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 Reporter:  strk     |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS GEOS
Component:  postgis  |    Version:  trunk
 Keywords:           |
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 I've the polygon of a river with a small island that becomes invalid after
 ST_PreserveTopology is called on it, with a relatively large tolerance.

 The invalidity is "Hole lies outside shell", which makes me think such
 occurrence isn't being checked for preservation.

 \cc Martin Davis

 I've spotted this with
 POSTGIS="2.2.0dev r13965" GEOS="3.5.0dev-CAPI-1.9.0 r4059"
 Waiting for permissions before sharing the input (or I'll cut it in pieces
 later)

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3263>
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