conformal cutout void fix (#232)

* Fixing cutout void

* syntax cleanup

Author: svandenb-dev

src/pyedb/dotnet/edb.py

@@ -2230,9 +2230,10 @@ def _create_cutout_multithread(
                 include_pingroups=include_pingroups,
                 pins_to_preserve=pins_to_preserve,
             )
-            if extent_type in ["Conforming", self.edb_api.geometry.extent_type.Conforming, 1] and extent_defeature > 0:
-                _poly = _poly.Defeature(extent_defeature)
-
+            if extent_type in ["Conforming", self.edb_api.geometry.extent_type.Conforming, 1]:
+                if extent_defeature > 0:
+                    _poly = _poly.Defeature(extent_defeature)
+                _poly = _poly.CreateFromArcs(_poly.GetArcData(), True)
         if not _poly or _poly.IsNull():
             self._logger.error("Failed to create Extent.")
             return []