How to change a Prefab in editor script?

Questions & Answers
1

I am trying change a prefab from an editor script. The changes seems to work but when I exit unity and return the changes are gone. I used AssetDatabase.SaveAssets() but it did not help.

Any other steps I should be doing?

    static void TestPreInit(){
            GameObject go = Selection.activeObject;
            Debug.Log(go.name);
            mmpc = go.GetComponent[of MotionPackControl]();
            if(mmpc != null){
                mmpc.isPreInit = true;
                AssetDatabase.SaveAssets();
            }
            Debug.Log("done");
    }

edit:cleanup code

2

Maybe try set the prefab as dirty