fix: transform commonjs

[peterhpchen]

Problem

@babel/plugin-transform-modules-commonjs used by @babel/preset-env for transform modules to commonjs will save which nodes have already traverse and skip them when the next traverse(https://github.com/babel/babel/blob/10978bb65a4b4e8874ca8dd3054b8c31b5838b7f/packages/babel-helper-module-transforms/src/rewrite-live-references.js#L175)

@babel/plugin-transform-modules-commonjs will save every traversed reference of node, so if the references of node are same, the babel will skip to transform the node. This is the problem of this issue.

Resolve

Just clone object to prevent use same object reference.