tickmode='sync' option is not working as expected

I was trying to use the multi-axes functionality in Plotly with the tickmode='sync' option, but the result was not as I expected. The grid axes are not aligned at y = 0 and the ticks of the second y axis are not "nice" rounded numbers. I found out that this issue was already raised in the repository where the functionality was originally pulled from: https://github.com/VictorBezak/Plotly_Multi-Axes_Gridlines/issues/4. Unfortunately, it was never resolved and since it is incorporated in Plotly I think it would make more sense to raise the issue here. Hopefully, someone can help me out!

P.S.: I think issue https://github.com/plotly/plotly.py/issues/4351 is referring to the same problems, but it is not as nicely explained as the issue mentioned above.

Bắt đầu bằng cách tái hiện trường hợp nhiều trục với tickmode='sync', sau đó so sánh hành vi với upstream issue được liên kết và plotly.py issue #4351. Hoàn thành khi các trục của lưới căn chỉnh tại y = 0 và trục y thứ hai sử dụng các giá trị tick được làm tròn đẹp.