[basex-talk] Problem with omit-xml-declaration during update operation

I'm trying to do an update operation on a file using standalone cmdline basex.

The xml-declaration get printed to stdout instead of to the updated file.

$cat test.xml <?xml version="1.0" encoding="UTF-8"?> <root> <test/> </root>

$cat test.xq declare option output:omit-xml-declaration "no";

let $root := doc("test.xml")/root return insert node <test/> into $root

$basex -u test.xq

$cat test.xml <root> <test/> <test/> </root>

The declaration gets removed :<