code: def test_rebuild_on_item_change(self):
      s = GeoSeries([Point(0, 0)])
      original_index = s.sindex
      s.iloc[0] = Point(0, 0)
      assert s.sindex is not original_index
  
imports: from math import sqrt
  import numpy
  import pandas
  import pytest
  import shapely
  from numpy.testing import assert_array_equal
  from shapely.geometry import GeometryCollection, LineString, MultiPolygon, Point, Polygon, box
  import geopandas
  from geopandas import GeoDataFrame, GeoSeries, read_file
  from geopandas import _compat
label_desc: Use image node_id 8 for calling the TestSeriesSindex obj's underlying member method code with example usage: obj.test_rebuild_on_item_change() without return types