Why not just copy the file in your /home, e.g in /Documents? If you have a problem you just have to replace the file with it to crush the wrong version and to return to the original state...
K.I.S.S. ===> "Keep It Simple, Stupid"
"Simplicity is the ultimate sophistication." (Leonardo da Vinci)
"Everything should be made as simple as possible, but no simpler." (Albert Einstein)