[2090] 修复文档背景图片预览与应用 - #4321

[2090] 修复文档背景图片预览与应用#4321

PinkMagicFly wants to merge 2 commits into

MoganLab:mainMoganLab/mogan:mainfrom

PinkMagicFly:pigmagicfly/2090/restore-background-picture-menuPinkMagicFly/mogan:pigmagicfly/2090/restore-background-picture-menuCopy head branch name to clipboard