[Spoilers] A very interesting fact about the Sharingan in chapter 671

[Mr Hiru]

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Kaguya, you little rabbit... you had a 9 tomoe sharingan... that's VERY INTERESTING. So Infinite Tsukiyomi was already used in the past... BY YOU!

 

[Erebus]

maybe not a full one, but something along the lines

 

[Joon]

Sharingan's power. Her Sharingan eyes reflected off of the Tree - which posses the Rinnegan, I assume.