Fix T100980: Missing deg update when duplicating a geometry nodetree in node editor.

Tagging depsgraph for relation rebuild does not replace tagging IDs for update.

source/blender/editors/object/object_modifier.cc

@@ -3397,6 +3397,7 @@ static int geometry_node_tree_copy_assign_exec(bContext *C, wmOperator *UNUSED(o
   nmd->node_group = new_tree;
   id_us_min(&tree->id);
 
+  DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
   DEG_relations_tag_update(bmain);
   WM_event_add_notifier(C, NC_OBJECT | ND_MODIFIER, ob);
   return OPERATOR_FINISHED;