bug#53145: "cut" can't segment Chinese characters correctly?

[zendas]

Hello, I need to get Chinese characters from the string. I googled a lot of 
documents, it seems that the -c parameter of cut should be able to meet my 
needs, but I even directly execute the instructions on the web page, and the 
result is different from the demonstration. I have searched dozens of pages but 
the results are not the same as the demo, maybe this is a bug?

For example:
https://blog.csdn.net/xuzhangze/article/details/80930714
[20180705173450701.png]
the result of my attempt:
[螢幕快照 2022-01-10 02:49:46.png]