clj-xpath map issue with namespaces removed

testing.clj

(ns testing
  (:require [clj-xpath.core :as xp]))

(def ^:dynamic xml-doc
  (slurp "xml-test.xml"))

(xp/with-namespace-context (xp/xmlnsmap-from-root-node xml-doc)
  (xp/$x "//Person" xml-doc))

(xp/with-namespace-context (xp/xmlnsmap-from-root-node xml-doc)
  (xp/$x "//Person/PersonName/PersonGivenName" xml-doc))
    
(xp/with-namespace-context (xp/xmlnsmap-from-root-node xml-doc)
  (xp/$x:text "./PersonName/PersonGivenName"
    (first (xp/$x "//Person" xml-doc))))
; => "Bob"
(xp/with-namespace-context (xp/xmlnsmap-from-root-node xml-doc)
  (map
    #(xp/$x:text "./PersonName/PersonGivenName" %)
    (xp/$x "//Person" xml-doc)))
; => ("Bob")

xml-test.xml

<?xml version="1.0" encoding="UTF-8"?>

<doPublish

    xmlns:ulex="http://ulex.gov/ulex/2.0"
    xmlns:ulexpd="http://ulex.gov/publishdiscover/2.0"
    xmlns:ulexcodes="http://ulex.gov/codes/2.0"
    xmlns:ulexlib="http://ulex.gov/library/2.0"

    xmlns:j="http://niem.gov/niem/domains/jxdm/4.1"
    xmlns:nc="http://niem.gov/niem/niem-core/2.0"
    xmlns:em="http://niem.gov/niem/domains/emergencyManagement/2.1"
    xmlns:fs="http://niem.gov/niem/domains/familyServices/2.1"
    xmlns:im="http://niem.gov/niem/domains/immigration/2.1"
    xmlns:scr="http://niem.gov/niem/domains/screening/2.1"
    xmlns:s="http://niem.gov/niem/structures/2.0"
    xmlns:lexs="http://lexs.gov/lexs/4.0"
    xmlns:wsa="http://www.w3.org/2005/08/addressing"
    xmlns:lexsdigest="http://lexs.gov/digest/4.0"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://ulex.gov/publishdiscover/2.0 ../../xsd/ulex.gov/ulex-publish-discover/2.0/ulex-publish-discover.xsd">
    <!--=======================  Person with Enforcement Official Role  =======================-->
    <EntityPerson>
        <Metadata s:id="MOff1">
            <SourceIDText>Per12345</SourceIDText>
        </Metadata>
        <Person s:id="Off1" s:metadata="MOff1">
            <PersonName>
                <PersonGivenName>Bob</PersonGivenName>
                <PersonSurName>Evans</PersonSurName>
            </PersonName>
        </Person>
        <EnforcementOfficial>
            <RoleOfPersonReference s:ref="Off1"/>
            <EnforcementOfficialBadgeIdentification>
                <IdentificationID>AGENCY3700</IdentificationID>
            </EnforcementOfficialBadgeIdentification>
        </EnforcementOfficial>
    </EntityPerson>
</doPublish>