Error when adding new columns to table with Foreign Keys and moving columns in list: "Object refe (86374)

User adds three new columns to a table having multiple Foreign Keys. He then moves columns in the list of column names up and down and the following error occurs:

"Exception: System.NullReferenceException
Message : Object reference not set to an instance of an object.
Stack Trace:
at Quest.Toad.SqlServer.Doe.Tables.TableEditForm.GetExAlterScript()
at Quest.Toad.SqlServer.Doe.Tables.TableEditForm.GetScript()
at Quest.Toad.Doe.BaseDoeForm.UpdateScript()
at Quest.Toad.Doe.BaseDoeForm.selectPageList_SelectedValueChanged(Object sender, EventArgs e)
at DevExpress.XtraEditors.BaseListBoxControl.RaiseSelectedValueChanged()
at DevExpress.XtraEditors.BaseListBoxControl.OnSelectionChanged()
at DevExpress.XtraEditors.ListBoxControlHandler.SingleSelectState.MouseUp(MouseEventArgs e)
at DevExpress.XtraEditors.ListBoxControlHandler.OnMouseUp(MouseEventArgs e)"

WORKAROUND:
None

STATUS:
Waiting for fix to be released in a future version of Toad for SQL Server.