1261: ‘period’ element not defined consistently

Hello, I am trying to model a Total Return Swap with Bond underlying in FpML. The <paymentFrequency> element (XPath: /dataDocument/trade/returnSwap/returnLeg/underlyer/singleUnderlyer/bond/paymentFrequency) contains <period> element that is defined as type=”PeriodEnum” instead of type=”PeriodExte0ndedEnum” (See this link). This prevents me from using enum value of “T” which is available for other <period> element defined elsewhere (See this link ) … Continued