Invalid geometries are accepted in DB but no way to take them out
The attached shapefile contains shapes that are imported in PostGIS with no warning or error, but result in them being stuck in there forever. In particular you can NOT copy them somewhere:
postgis_bugs=# copy poly_molto_critici to '/tmp/out'; ERROR: geometry requires more points
Of course you can't even pg_dump:
postgis_bugs=# select the_geom from poly_molto_critici; ERROR: geometry requires more points
Note that I'm testing this with current trunk, but the original reporter (Regione Toscana) mentioned they are using 1.4.1 so for them to be out of the induced nightmare we'd need a C-only fix and a 1.4.2.