Method setDefaultCheckedKey

src/tree/model/tree-store.js:122–127

(newVal)

  }

  setDefaultCheckedKey(newVal) {
    if (newVal !== this.defaultCheckedKeys) {
      this.defaultCheckedKeys = newVal;
      this._initDefaultCheckedNodes();
    }
  }

  registerNode(node) {
    const key = this.key;