|  | @@ -223,8 +223,7 @@
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				|  |  |      buildStageSelection();
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				|  |  |  
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				|  |  | -    const ORG_TOP_TREE_NODES = [];
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				|  |  | -    Object.assign(ORG_TOP_TREE_NODES, TOP_TREE_NODES);
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				|  |  | +    const ORG_TOP_TREE_NODES = JSON.parse(JSON.stringify(TOP_TREE_NODES));
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				|  |  |      for (let item of TOP_TREE_NODES) {
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				|  |  |          item.items = JSON.parse(item.items);
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				|  |  |          if (item.items && item.items.length > 0) {
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