[basex-talk] Nullpointer Exception with empty reason in RestXQ response

Hi all, when, in 7.8.x, I override the rest response in an RestXQ as in:

declare %rest:path('testhead1') %rest:HEAD function test:myfunct1() { let $out := () (: also with let $out := "" :) rest:response <http:response status="404" reason="{$out}" /> </rest:response> };

I get a null pointer exception from a calling http-client code (in the GUI the usual message "Improper use or potential Bug ...").

http:send-request(<http:requestmethod="head" href="http://localhost:8984/testhead1%22/%3E)

If I omit the reason attribute alltogether it correctly defaults to the HTTP Phrase "Not Found". Couldn't it be useful to handle the two cases in the same way? Regards, Marco.