existdb util:get-fragment-between to get fragment from node to end of file

Question

In some prior iteration of the exist-db version, the following code was working to create a fragment between a specific starting node and the end of the file (aka, everything that follows until the end).

Here's the code:

let $beginning-node := $doc/tei:TEI//tei:body//tei:pb[@ed=$initial_with_hash][@n=$surface_number_start]

let $ending-node := $doc/tei:TEI//tei:body//tei:pb[@ed=$initial_with_hash[@n=$surface_number_start]//following

let $make-fragment := true()
let $display-root-namespace := true()
let $fragment := util:get-fragment-between($beginning-node, $ending-node, $make-fragment, $display-root-namespace)

Today I realized that this code, though unchanged, is no longer working. Specifically, there seems to be problem with using the //following to create the $ending-node. So I suspect a change has been made in an updated version and I need to update my code somehow. The question is how.

In this particularly case, there is a specific element I want the fragment to begin from and then I want the fragment to include everything that follows, but in such I case I'm not sure how to properly provide and $ending-node

If anyone has ideas about I could update this so that it will start working again, I would be grateful.