QGIS » QGIS Application

creating a line in a 2D linestring geom and pasting it in a 3D linestring will crash QGIS.
This can be tested with a postgis table:

CREATE TABLE public.pipe
(
  id uuid NOT NULL,
  year_end smallint,
  remark text,
  geometry_linez geometry(LineStringZ,21781),
  geometry_curve geometry(MultiCurve,21781),
  geometry_curvez geometry(MultiCurveZ,21781),
  geometrycollection geometry(GeometryCollectionZ,21781),
  geometry_line geometry(LineString,21781),
  CONSTRAINT pipe_pkey PRIMARY KEY (id)
)
WITH (
  OIDS=FALSE
);

COMMENT ON TABLE public.pipe
  IS 'Table for pipes.';