Restyle in a zoomed 3D state sometimes changes the zoom level

When using Scatter3D, sometimes if the plot is restyled while it is in a zoomed state, the zoom level is spontaneously changed; sometimes a little, sometimes a lot.

To reproduce:

1. Visit this codepen: https://codepen.io/k_sze/pen/WXgNoJ
2. Zoom the plot a little bit using your mouse wheel; You can zoom in or out;
3. Open codepen's console and run the restyle() function;
4. Watch the plot's zoom level get changed spontaneously.

You may need to repeat steps 2 and 3 a few times.

Not sure if it's related to #346 and the fix in #351.

使用 Scatter3D 通过链接的 CodePen 重现该问题：使用鼠标滚轮缩放，然后从控制台运行 restyle()。跟踪 Scatter3D 的 restyle 路径，并将其行为与相关 issue #346 和 #351 进行比较。当 restyling 不再改变图表现有的缩放级别时，即视为完成。