[postgis-tickets] [PostGIS] #4706: Backend crash with TopoGeo_addLinestring against an invalid topology

[PostGIS]

#4706: Backend crash with TopoGeo_addLinestring against an invalid topology
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 Reporter:  strk      |      Owner:  strk
     Type:  defect    |     Status:  new
 Priority:  blocker   |  Milestone:  PostGIS 3.0.2
Component:  topology  |    Version:  master
 Keywords:            |
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 As reported in https://github.com/larsop/resolve-overlap-and-gap/issues/1
 there are cases in which an invalid topology triggers a segfault in
 PostGIS, which assumes some form of validity (existing MBR for faces).

 This is probably true since we switched topology from plpgsql to C, and
 fixes should be backported to all those versions (2.2.0 onward)

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4706>
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