Crash when working with complex composite_types

Create a new database and then paste:

CREATE TYPE minithumb AS
   (x smallint,
    y smallint,
    url text);
ALTER TYPE minithumb
  OWNER TO root;

CREATE TYPE thumbnail AS
   (width smallint,
    height smallint,
    seconds numeric[],
    frames integer[],
    "interval" smallint,
    "number" smallint,
    title text,
    format smallint);
ALTER TYPE thumbnail
  OWNER TO root;

CREATE TYPE watermark AS
   (url text,
    x smallint,
    y smallint,
    width smallint,
    height smallint,
    opacity smallint);
ALTER TYPE watermark
  OWNER TO root;

CREATE TYPE output AS
   (width smallint,
    height smallint,
    minithumbs minithumb[],
    watermarks watermark[],
    thumbnails thumbnail[],
    start_time smallint,
    end_time smallint,
    title text,
    min_width smallint,
    min_height smallint);
ALTER TYPE output
  OWNER TO root;