Default [Question] Lockscreen Picture Question

Hey Guys,

So I have a friend that has set a picture as their lockscreen and has managed to lose the original copy of said picture. Its still set in the lockscreen so Im thinking its got to exist as a copy somewhere in there. Does anyone here know where the lockscreen wallpaper that is currently active is stored? Its a picture of a loved one who has pass away and It would mean alot to them to have it.

any help is appreciated, thanks!

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