网络图片转换为本地图片BUG

Is there an existing issue for this?

• I have searched the existing issues
  To pick up a draggable item, press the space bar. While dragging, use the arrow keys to move the item. Press space again to drop the item in its new position, or press escape to cancel.

Can the issue be reproduced with the default theme (daylight/midnight)?

• I was able to reproduce the issue with the default theme
  To pick up a draggable item, press the space bar. While dragging, use the arrow keys to move the item. Press space again to drop the item in its new position, or press escape to cancel.

Could the issue be due to extensions?

• I've ruled out the possibility that the extension is causing the problem.
  To pick up a draggable item, press the space bar. While dragging, use the arrow keys to move the item. Press space again to drop the item in its new position, or press escape to cancel.

Describe the problem

文字和图片是从sublimetext的markdown preview中复制过来的
点击下网络图片转换为本地图片时，无法下载file://开头的问题，提示：该文档中不存在网络文件

Expected result

希望能复制图片到思源内部的本地图片目录中

Screenshot or screen recording presentation

No response

Version environment

- Version: 2.11.3
- Operating System:  MacOS BigSur
- Browser (if used):

Log file

无

More information

No response