为什么用popover组件设置背景图时候会重新刷图片接口，用img标签就不会

[glw116]

trafficstars

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

Version

3.2.20

Environment

os

Reproduction link

Steps to reproduce

打开f12勾选img，hover到背景图片上，接口会请求多次，hover到图片上不会请求多次

What is expected?

hover到背景图片上，只请求一次图片

What is actually happening?

图片地址重复请求

[glw116]

hover到背景图时候重复加载 hover到图片只加载一次

[github-actions[bot]]

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