[TYPO3-commerce] ###ARTICLE_ORDERNUMBER### problems with this marker

[Arno Pfeuffer]

Hi,
I try to make a TS wrap about the marker "###ARTICLE_ORDERNUMBER###" but 
  I get no result in the FE. Her my TS-Code:

lib.tx_commerce {
   articles {
     addToBasketLink = TypoLink
     defaultQuantity = 0
     fields {
	images.file.maxW = 190
	ordernumber < lib.tx_commerce.stdFiel
	subtitle < lib.tx_commerce.stdField
	plain_text < lib.tx_commerce.stdField
     }
   }

and...

plugin.tx_commerce_pi1 {
  singleView{
   articles {
    fields {
     title.wrap = <h2 class="comSingle-artTitle">|</h2>
     subtitle.wrap = <p class="comSingle-artSubtitle">|</p>
     ordernumber.wrap = <p class="comSingle-artOrdNr"><small>|</small></p>
     description_extra.wrap = <div class="comSingle-artDesc">|</div>
     plain_text.wrap = <div class="comSingle-plain">|</div>
     title.typolink >
    }
   }
  }
}

plain_text is "new" too but it works. Does anybody know, why ordernumber 
will not work? Is here mayby a bug??