[TYPO3-shop] Marker Substitution

[Lukas Taferner]

Dear Franz,

I created a custom database field called tx_keeperpoints_keeperpoints in 
the table tt_products.
In the single view the marker  
###PRODUCT_TX_KEEPERPOINTS_KEEPERPOINTS### is only substituted with the 
correct value when I am logged in as Backend User.
Not logged in I see the marker (unsubstituted).

Version is 2.7.0 (6.Dec. 2007)

Thanks for your help,

Lukas Taferner