New Post: Collection was modified error when removing nodes in v1.4

private void ConvertContentTo(HtmlNode node)
{
      int i = 0;
      int childNodeCount = node.ChildNodes.Count;
      while (i < childNodeCount)
      {
           ConvertTo(node.ChildNodes[i]);
           childNodeCount = node.ChildNodes.Count;
           i++;
      }
}