Control sequences are not being parsed correctly when using the serial port

像图片中这样 ,使用了串口方式才会这样
**删除,左右键等等都会出现字符且无法关闭**
请问如何解决? 还是BUG呢?

Start by reproducing the reported behavior in a serial-port session using the screenshot and issue description as reference. Trace how control sequences from Delete and arrow keys are parsed, then verify that these keys no longer display stray characters or remain active.

Written by the indexing model from the issue text.