In the anime Tobirama Senju tells Naruto he invented the Kage Bushin no Jutsu. However, in episode 465 we see Indra performing a cloning technique which looks exactly like it. And Indra was born before Tobirama. Also Asura tries it and fails to do it right. And they have an instructor who is next to Hagomoro. So it looks like either Hagomoro or the instructor invented that technique.
Is this technique supposed to have something different to Tobirama's, or did actually someone else invent the Kage Bushin no Jutsu ?