Changed access to parts of Shapely MultiPolygon (Shapely deprecation)

gdeimporter/tools/spatial.py

@@ -61,7 +61,7 @@ class SpatialTools:
         if in_geometry.geom_type == "Polygon":
             geometries = [in_geometry]
         elif in_geometry.geom_type == "MultiPolygon":
-            geometries = list(in_geometry)
+            geometries = list(in_geometry.geoms)
         else:
             raise OSError("get_quadtiles_in_bbox_of_polygon: argument is not a valid geometry")