fix: actually update the o_beam_cloud point cloud list

Author: DamienGilliard

src/gh/components/DF_CAD_segmentator/code.py

@@ -71,9 +71,9 @@ def RunScript(self,
 
         o_beam_clouds = [df_cvt_bindings.cvt_dfcloud_2_rhcloud(cluster) for cluster in df_clusters]
 
-        for o_beam_cloud in o_beam_clouds:
+        for i, o_beam_cloud in enumerate(o_beam_clouds):
             if not o_beam_cloud.IsValid:
-                o_beam_cloud = None
+                o_beam_clouds[i] = None
                 ghenv.Component.AddRuntimeMessage(RML.Warning, "Some beams could not be segmented and were replaced by 'None'")  # noqa: F821
 
         o_face_clouds = th.list_to_tree(o_face_clusters)