[BUGFIX] Do not generate site configuration for localized root pages

A new condition is added to the `CreateSiteConfiguration` DataHandler
hook which avoids the creation of a new site configuration for
localizations of root pages.

Resolves: #91845
Releases: master, 10.4
Change-Id: Ic51ba62600f4304920b66afe53b66e598404a104
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/65107
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>

typo3/sysext/core/Classes/Hooks/CreateSiteConfiguration.php

@@ -51,6 +51,7 @@ public function processDatamap_afterDatabaseOperations(string $status, string $t
          *   - live workspace
          *   - resolved uids
          *   - pages on root level
+         *   - pages in default language
          *   - non-versioned records
          *   - allowed doktypes
          *   - not bulk importing things via CLI
@@ -60,6 +61,7 @@ public function processDatamap_afterDatabaseOperations(string $status, string $t
             || $dataHandler->BE_USER->workspace > 0
             || !isset($dataHandler->substNEWwithIDs[$id])
             || (int)$fieldValues['pid'] !== 0
+            || (int)$fieldValues['l10n_parent'] !== 0
             || (isset($fieldValues['t3ver_oid']) && (int)$fieldValues['t3ver_oid'] > 0)
             || !in_array((int)$fieldValues['doktype'], $this->allowedPageTypes, true)
             || $dataHandler->isImporting