IME input cannot be displayed completely in Select and TreeSelect component

[QichenZhu]

Reproduction link

https://stackblitz.com/edit/ng-zorro-antd-ivy-pew3zt

Steps to reproduce

1. Open the demo link
2. Click the select box
3. Turn on Microsoft Pinyin and switch to Chinese input mode
4. Type nihao

What is expected?

The word nihao should be displayed in the select box completely.

What is actually happening?

The word nihao is not displayed in the select box completely.

Environment	Info
ng-zorro-antd	9.3.0
Browser	Chrome 84.0.4147.105
OS	Windows 10, version 2004

---

Setting COMPOSITION_BUFFER_MODE to false can solve this issue. However, it will cause a search to be performed every time a key is pressed in IME input mode.