B2016-130: Copy and paste replace steps causing missing and duplicate items in tree (problems with ‘NextItems’)

PROMS/Volian.Controls.Library/DisplayFoldoutMaint.cs

@@ -91,7 +91,7 @@ namespace Volian.Controls.Library
 				}
 				else
 					lstCBSteps.Items.Add(startitm, CheckState.Unchecked);
-				startitm = (startitm.NextItem != null && startitm.NextItems.Count > 0 ? startitm.NextItems[0] : null);
+				startitm = startitm.GetNext();
 			}
 		}
 		private void listBoxFoldouts_SelectedIndexChanged(object sender, EventArgs e)