[Typo3-shop] listing all products using pageAsCategory=1

[Rick [Futuros]]

Debugging the source code helped me understand the pid_listing a bit.

When using pageAsCategory the pid_list is automatically reset to the page 
uid field. Unless you overwrite the pid_list.field code.
About the same for recursive.

   recursive = 5
   recursive.field=
   pid_list= 6
   pid_list.field=

This code makes the whole thing work.

Cheers.