ArrayHtml - Treat `<af-entity/>` and `<af-field/>` as self-closing tags

core/CRM/Afform/ArrayHtml.php

@@ -22,11 +22,13 @@ class CRM_Afform_ArrayHtml {
       '*' => 'text',
     ],
     'af-entity' => [
+      '#selfClose' => TRUE,
       'name' => 'text',
       'type' => 'text',
       'data' => 'js',
     ],
     'af-field' => [
+      '#selfClose' => TRUE,
       'name' => 'text',
       'defn' => 'js',
     ],

mock/tests/phpunit/api/v4/formatExamples/banana.php

 <?php
 
 return [
-  'html' => '<div><strong>New text!</strong><af-field name="do_not_sms" defn="{label: \'Do not do any of the emailing\'}"></af-field></div>',
+  'html' => '<div><strong>New text!</strong><af-field name="do_not_sms" defn="{label: \'Do not do any of the emailing\'}" /></div>',
   'shallow' => [
     [
       '#tag' => 'div',