Summary:
adding a summarytemplate parameter changes the url of the item
Detailed Description:
When calling an instance without the parameter, e.g. {LISEinstance} then
$item->url returns what is in the url field of the item
e.g. mydomain.com/liseinstance/customurl
If you call it with a summarytemplate parameter, $item->url returns a different
url
e.g. mydomain.com/liseinstance/item_000001/23