PrefabNameRevert

using UnityEngine;
using UnityEditor;
using System.Collections.Generic;

public class PrefabNameRevert
{
    [MenuItem("Prefab/RevertName")]
    static void RevertPrefabNames()
    {
        RevertAllNames(Selection.GetFiltered(typeof(GameObject), SelectionMode.OnlyUserModifiable));
    }

    public static void RemoveNameModification(UnityEngine.Object aObj)
    {
        var mods = new List<PropertyModification>(PrefabUtility.GetPropertyModifications(aObj));
        for (int i = 0; i < mods.Count; i++)
        {
            if (mods[i].propertyPath == "m_Name")
                mods.RemoveAt(i);
        }
        PrefabUtility.SetPropertyModifications(aObj, mods.ToArray());
    }
    public static void RevertAllNames(Object[] aObjects)
    {
        var items = new List<Object>();
        foreach (var item in aObjects)
        {
            var prefab = PrefabUtility.GetPrefabParent(item);
            if (prefab != null)
            {
                Undo.RecordObject(item, "Revert perfab name");
                item.name = prefab.name;
                items.Add(item);
            }
        }
        Undo.FlushUndoRecordObjects();
        foreach (var item in items)
        {
            RemoveNameModification(item);
        }
    }
}