How to fix custom component keyboard cursor behavior

[icyxianyu]

I tried to implement a custom extension to achieve behavior similar to an inline input box with a placeholder.

However, when I tried to switch left and right through the keyboard, I couldn't get the cursor to enter the custom extension，custom components will be selected for all ,At the same time, I also found that rows with custom extensions had abnormal behavior to switch up and down.

here is a demo: https://codesandbox.io/p/sandbox/hrjg4g

How can I fix it ? Or is there another implementation?

[bdbch]

Lets keep this in the issue you created #5903