fix geometry conversion for multipolygonal shapes
fix geometry conversion for multipolygonal shapes

geometalab/drf-utm-zone-info,geometalab/osmaxx,geometalab/osmaxx,geometalab/osmaxx-frontend,geometalab/osmaxx-frontend,geometalab/drf-utm-zone-info,geometalab/osmaxx-frontend,geometalab/osmaxx-frontend,geometalab/osmaxx,geometalab/osmaxx