.textline remains when window size gets large

Hi, thank you for the great library.

I use the pie chart with responsive: true for the graph configuration, and I've noticed that when the window size gets small, the label would be shown outside of the arc with .textline lines:

And then the window size gets large again, .textline lines remains even when they are not necessary anymore:

I think it is not an intended thing which '.textline' lines are remaining.

It can be reproduced on this codepen with resizing the preview window.

从链接的 CodePen 开始，通过调整其响应式预览窗口的大小来复现饼图的行为。跟踪 .textline 标签在调整大小过程中是如何创建和更新的；当窗口变大且不再需要时，小尺寸下显示的线条会被移除，即表示完成。