Menu component in light mode with collapsed has flash white block

[keeplz]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

1.7.3

Environment

vue 2.6.12 ant-design-vue 1.7.3

Reproduction link

https://preview.pro.antdv.com/dashboard/workplace

Steps to reproduce

1. create a menu with collapsed in light mode
2. add some sub-menu into it
3. mouseenter the menu,will see a white block first, then the sub-menu show

What is expected?

only show sub-menu

What is actually happening?

.ant-menu-submenu-popup doesn't have "background: transparent" property

in dark mode, this problem can't reproduce, because: .ant-menu-dark.ant-menu-submenu-popup: background: transparent

[keeplz]

now solved with:
popup-class-name="popup-sub-menu"

.ant-menu-submenu-popup.popup-sub-menu {
background: transparent;
}

[keeplz]

flash.mov

[keeplz]

enter:

leave:

[github-actions]

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