Issue in BaseX 11.0 beta?

basex11beta.xq

let $data := map {
  "warner bros": [map {
    "match": "true",
    "uri": "http://id.loc.gov/authorities/names/n50028315 http://id.loc.gov/authorities/names/n85138180 http://id.loc.gov/authorities/names/no2003017455",
    "index-type": "x",
    "entry-id": "60021fec-672e-4f09-a160-197c1e2c97e1",
    "tags": "710",
    "lookup": "warner bros",
    "source": <key>warner bros</key>,
    "file": "lcnaf-2023"
  }],
  "land tenure": [map {
    "match": "true",
    "uri": "http://id.loc.gov/authorities/subjects/sh00006381 http://id.loc.gov/authorities/subjects/sh85074312",
    "index-type": "n",
    "entry-id": "66c9c5c4-0932-405d-9e2a-eec9eea4dcd3",
    "tags": "650",
    "lookup": "land tenure",
    "source": <key>land tenure</key>,
    "file": "lcsh"
  }],
  "catholic church--doctrinal and controversial works": [map {
    "match": "true",
    "uri": "http://id.loc.gov/authorities/subjects/sh85021093 http://id.loc.gov/authorities/subjects/sh85021103",
    "index-type": "x",
    "entry-id": "feb5005f-dc33-4ba9-b767-8adc5965f078",
    "tags": "610",
    "lookup": "catholic church--doctrinal and controversial works",
    "source": <key>catholic church--doctrinal and controversial works</key>,
    "file": "lcsh"
  }]
}
let $lookups := <lookups>
  <d a="http://id.loc.gov/authorities/subjects/sh00006381" d="false" s="true" t="Topic">
    <a>Land tenure</a>
    <n>land tenure</n>
    <v>Tenure of land</v>
    <x>tenure of land</x>
  </d>
  <d a="http://id.loc.gov/authorities/subjects/sh85074312" d="false" s="false" t="Topic">
    <a>Land tenure</a>
    <n>land tenure</n>
    <v>Land ownership</v>
    <x>land ownership</x>
    <v>Feudal tenure</v>
    <x>feudal tenure</x>
    <v>Freehold</v>
    <x>freehold</x>
    <v>Landownership</v>
    <x>landownership</x>
    <v>Land question</v>
    <x>land question</x>
    <v>Agrarian tenure</v>
    <x>agrarian tenure</x>
    <v>Tenure of land</v>
    <x>tenure of land</x>
  </d>
  <d a="http://id.loc.gov/authorities/names/n50028315" t="CorporateName" u="false">
    <a>Warner Bros. Pictures (1923-1967)</a>
    <n>warner bros pictures 1923-1967</n>
    <v>Warner Brothers</v>
    <x>warner brothers</x>
    <v>Warner Bros.</v>
    <x>warner bros</x>
    <v>Warner Bros. Productions Corp.</v>
    <x>warner bros productions corp</x>
    <v>Warner Bros.-First National Picture</v>
    <x>warner bros-first national picture</x>
    <v>Warner Brothers Pictures (1923-1967)</v>
    <x>warner brothers pictures 1923-1967</x>
  </d>
  <d a="http://id.loc.gov/authorities/names/n85138180" t="CorporateName" u="false">
    <a>Warner Bros.-Seven Arts</a>
    <n>warner bros-seven arts</n>
    <v>Warner Bros.</v>
    <x>warner bros</x>
    <v>Warner Brothers</v>
    <x>warner brothers</x>
    <v>Warner Brothers-Seven Arts</v>
    <x>warner brothers-seven arts</x>
  </d>
  <d a="http://id.loc.gov/authorities/names/no2003017455" t="CorporateName" u="false">
    <a>Warner Bros. Pictures (1969- )</a>
    <n>warner bros pictures 1969-</n>
    <v>Warner Communications Inc. Warner Bros. Pictures (1969- )</v>
    <x>warner communications inc warner bros pictures 1969-</x>
    <v>Warner Brothers</v>
    <x>warner brothers</x>
    <v>Warner Bros.</v>
    <x>warner bros</x>
    <v>Warner Brothers Pictures (1969- )</v>
    <x>warner brothers pictures 1969-</x>
    <v>AOL Time Warner. Warner Bros. Pictures (1969- )</v>
    <x>aol time warner warner bros pictures 1969-</x>
  </d>
  <d a="http://id.loc.gov/authorities/subjects/sh85021093" d="false" s="false" t="ComplexSubject">
    <a>Catholic Church--Controversial literature</a>
    <n>catholic church--controversial literature</n>
    <v>Catholic Church--Doctrinal and controversial works</v>
    <x>catholic church--doctrinal and controversial works</x>
  </d>
  <d a="http://id.loc.gov/authorities/subjects/sh85021103" d="false" s="false" t="ComplexSubject">
    <a>Catholic Church--Doctrines</a>
    <n>catholic church--doctrines</n>
    <v>Catholic Church--Doctrinal and controversial works</v>
    <x>catholic church--doctrinal and controversial works</x>
  </d>
</lookups>
return
  array {
    map:for-each($data, fn($k, $v) {
      for $m in $v?*[contains(?uri, " ") and ?match = "true"]
      for $uri in tokenize($m?uri, "\s")
      let $source := $m?source
      let $auth := $lookups/d[@a = $uri]
      for $a in $auth
      let $lookup := $a/@t
      let $subdiv := 
        if ($a/@s)
        then xs:boolean($a/@s)
        else false()
      return (        
        if (($source[@tag] or $source[self::key]) and $subdiv = false())
        
        (: The entries for "catholic church--doctrinal and controversial works"
           only return if the $subdiv variable is referenced below. They should 
           always be returned for this condition. Works correctly in BaseX 10.6. :)
        then ($m(:, $subdiv :)) 
        
        else ()         
      )
  })
}