[PostGIS] #5684: Segfault from _RegisterMissingFaces

[PostGIS]

#5684: Segfault from _RegisterMissingFaces
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 Reporter:  strk      |      Owner:  strk
     Type:  defect    |     Status:  new
 Priority:  blocker   |  Milestone:  PostGIS 3.5.0
Component:  topology  |    Version:  master
 Keywords:            |
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 I'm getting a segfault from a draft implementation of TopoGeo_addGeometry
 which is pure plpgsql and shows the segfault happens when calling the
 internal _RegisterMissingFaces function which is instead written in C.

 The C function is only accessible from 3.5.0dev (still unreleased) so I'm
 marking this as a blocker to avoid shipping a crashable version.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5684>
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