Prevent losing KVP’s when stamping a prefab?

Game Modding | Call of Duty: Black Ops 3 | Radiant

ModmeBot:

Thread By: MRFREAKYBWOY
Hi Guys,

I created a load of prefabs so I can use cross maps, but I have noticed that when I stamp a prefab I have made the user defined KVPs get deleted. It's not too much of a problem because I know which KVPs are lost, but it would be great to make sure ALL user KVPs are still there after stamping a prefab.

Anyone know how to do this?

Thanks,