### Version 4.2.1 ### Steps to reproduce 配置项开启roam:'move',先随意拖动树状图,然后点击根节点收起时,根节点会向左移动一段距离,再点击展开就回到原来的位置 ### What is expected? 根节点不要移动 ### What is actually happening? 根节点向左移动 <!-- This issue is generated by echarts-issue-helper. DO NOT REMOVE -->