[postgis-tickets] [PostGIS] #3380: "geometry crosses edge" with 1e-2 tolerance

[PostGIS]

#3380: "geometry crosses edge" with 1e-2 tolerance
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  Reporter:  strk      |      Owner:  strk
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS 2.0.8
 Component:  topology  |    Version:  2.0.x
Resolution:            |   Keywords:
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Comment (by strk):

 I'm not sure why we're snapping to existing _NODES_ again after having
 snapped to existing _EDGES_, since every existing node would already be
 part of an existing edge, so we should have snapped there already.

 I suppose this was a workaround for some previously found robustness case
 whereas snapping to edge would move the input far enough that a second
 snap would snap more (as happens in this case).

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3380#comment:8>
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