Dear BaseX people,

I cannot use copy/modify/return in order to add a namespacing:

let $doc := <doc><a/></doc>

return

copy $doc_ := $doc

modify

insert node namespace xyz {'https://basex.org/ns'} into $doc_

return $doc_

<doc>

<a/>

</doc>

Is this a bug?

Kind regards,

Hans-Jürgen