FIX Preview link when no locale set

src/Extension/FluentExtension.php

@@ -86,6 +86,11 @@ class FluentExtension extends DataExtension
      */
     const INHERITANCE_MODE_ANY = 'any';
 
+    /**
+     * Title of a temporary locale used when once hasn't yet been created
+     */
+    private const TEMP_LOCALE_TITLE = 'Temp locale';
+
     /**
      * DB fields to be used added in when creating a localised version of the owner's table
      *
@@ -1062,7 +1067,10 @@ public function LocaleInformation($locale = null)
             // website operation
             // This temporary Locale is created to prevent a invalid argument exception in
             // RecordLocale::__construct()
-            $localeObj = Locale::create(['Locale' => i18n::get_locale()]);
+            $localeObj = Locale::create([
+                'Title' => FluentExtension::TEMP_LOCALE_TITLE,
+                'Locale' => i18n::get_locale()
+            ]);
         }
 
         return RecordLocale::create($this->owner, $localeObj);
@@ -1161,7 +1169,9 @@ public function updatePreviewLink(&$link): void
     {
         $owner = $this->owner;
         $info = $owner->LocaleInformation(FluentState::singleton()->getLocale());
-
+        if ($info->Title === FluentExtension::TEMP_LOCALE_TITLE) {
+            return;
+        }
         if (!$info->getSourceLocale()) {
             $link = null;
         }