<str> cannot be a target for more than one move clause

  Explanation:  The user entered a transfer with more than one
  move clause specifying the named target as the target.  Note
  that even if an into clause is not specified, the target name,
  taken from the source table name, must be unique.

  User Action:  Re-enter the statement making sure that tables
  specified in INTO clauses are unique and do not duplicate names
  of source tables without INTO clauses.