World copied in creative, then deleted original.

  So me and my family have a survival world for us all, but this morning I was logging onto Minecraft, and because my brother wanted to go afk all night long, it loaded onto the world. At first it was fine, but then I realized I couldn't pick up items, and nothing except me was moving. I got off the world to reload it, but when I tried to get back on, I realized it was gone with a creative copy in its place. At first we thought it could have been my little brother cause he used to always accidentally do that, but we ban copying worlds, and when he does copy, he griefs the whole world in creative, while in this copy, everything was the same except for the fact that it said "Copy of My World" and the fact that it's in creative. If you could fix that then that would be amazing especially if you could get us our world back. I just know no one in my family did delete it, because I was the last awake last night at midnight, and the first awake at 7:00. I'm just saying, if you could fix that and give my family our world back, then that would be amazing and deeply appreciated, but we also get that when a world is deleted, it's deleted. Please fix the bug so it doesn't do the same to anyone else's favorite world, please and thank you.

 

-Isaac T.