Editor Script to replace objects (problem with selection)

Questions & Answers
1

This is what I have sofar, and it works, but on a game object with 23 children, only 11 of them get changed.

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

public class CreateHolders : MonoBehaviour {
	
	[MenuItem ("Pluto/Place Holders")]
	static void PlaceHolders () {
		foreach(GameObject go in Selection.gameObjects){
			foreach (Transform child in go.transform) {
				if(child.tag == "Wall"){
					GameObject tempGo = new GameObject(child.name.Replace("TS001_", "WALL"));
					tempGo.tag = "WallHolder";
					tempGo.transform.parent = Selection.activeTransform;
					DestroyImmediate(child.gameObject);
				}
			}
		}

	}
}

EDIT1:
It appears to only do half of the children
First one does 11/23, leaving 12.
Second one does 6/12 leaving 6.
Third time does 3/6 leaving 3.
etc … strange?

EDIT2: I tried unparenting the items I wanted to destroy and not destroying them, and it still only processed 1/2 of the children. Problem doesn’t appear to be with DestroyImmediate().

2

I tried that and it seems to work.

		foreach(GameObject go in Selection.gameObjects){
			for(int i = 0; i < go.transform.GetChildCount(); i++) {
				DestroyImmediate(go.transform.GetChild(i).gameObject);
				i--;
			}
		}