I am so sorry it has taken me this long to get back to you. Life moving crazy stuff.
Anyways to answer your question, after results have been accomplished. No it won't undo the spell. You can't undo something thats been done.
Theres no magickal white out. Does this help?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.