ansible community.general.xml strange behavior on empty tags

output.log

# ansible-playbook -D testxmlemptytag.yml

PLAY [localhost] ************************************************************************************************************************************************************

TASK [Gathering Facts] ******************************************************************************************************************************************************
ok: [127.0.0.1]

TASK [ansible.builtin.copy] *************************************************************************************************************************************************
changed: [127.0.0.1]

TASK [community.general.xml] ************************************************************************************************************************************************
--- before
+++ after
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <a>
   <b>
-    <x>xxx</x>
+    <x>xx</x>
     <y>yyy</y>
     <z>zzz</z>
   </b>

changed: [127.0.0.1] => (item={'key': 'x', 'value': 'xx'})
--- before
+++ after
@@ -2,7 +2,7 @@
 <a>
   <b>
     <x>xx</x>
-    <y>yyy</y>
+    <y></y>
     <z>zzz</z>
   </b>
 </a>

changed: [127.0.0.1] => (item={'key': 'y', 'value': None})
--- before
+++ after
@@ -3,6 +3,6 @@
   <b>
     <x>xx</x>
     <y/>
-    <z>zzz</z>
+    <z></z>
   </b>
 </a>

changed: [127.0.0.1] => (item={'key': 'z', 'value': None})

testxmlemptytag-original.xml

<a>
  <b>
    <x>xxx</x>
    <y>yyy</y>
    <z>zzz</z>
  </b>
</a>

testxmlemptytag.yml

---

# https://github.com/ansible-collections/community.general/issues/8361

- hosts: localhost
  gather_facts: true
  become: no
  vars:
    abctags:
      x: xx
      y:
      z:
      #alibeit:
  tasks:
    - ansible.builtin.copy:
        src: testxmlemptytag-original.xml
        dest: testxmlemptytag.xml
        remote_src: true
    - community.general.xml:
        path: testxmlemptytag.xml
        xpath: /a/b/{{ item.key }}
        value: "{{ item.value }}"
        pretty_print: true
      with_dict: "{{ abctags }}"

...