[Component] [tree-select] with teleported="false" dropdown closes abnormally

[iZhangHao1997]

Bug Type: Component

Environment

• Vue Version: 3.4.24
• Element Plus Version: 2.7.6
• Browser / OS: Chrome/126.0.0.0 / macOS 12.4
• Build Tool: Vite

Reproduction

Related Component

• el-tree-select

Reproduction Link

Element Plus Playground

Steps to reproduce

Click the scrollbar in dropdown, and the dropdown will be closed.

What is Expected?

When click the scrollbar in dropdown, is should not be closed.

What is actually happening?

When click the scrollbar in dropdown, the dropdown will be closed.

Additional comments

(empty)