[BUGFIX] Use correct identifier for "england" flag icon

Resolves: #91099
Releases: master, 9.5
Change-Id: I08ea8ecfc7096a21b0ffddee0b4e3976363fffd5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64219


Tested-by: Markus Klein <markus.klein@typo3.org>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Richard Haeser <richard@maxserv.com>

typo3/sysext/backend/Configuration/SiteConfiguration/site_language.php

@@ -207,7 +207,7 @@ return [
                     ['eg', 'eg', 'flags-eg'],
                     ['eh', 'eh', 'flags-eh'],
                     ['en-us-gb', 'en-us-gb', 'flags-en-us-gb'],
-                    ['england', 'england', 'flags-gb-eng'],
+                    ['gb-eng', 'gb-eng', 'flags-gb-eng'],
                     ['er', 'er', 'flags-er'],
                     ['es', 'es', 'flags-es'],
                     ['et', 'et', 'flags-et'],

typo3/sysext/core/Documentation/Changelog/master/Important-91099-ChangedFlagIdentifierForEngland.rst

+.. include:: ../../Includes.txt
+
+====================================================================
+Important: #91099 - Flag identifier changed for SiteLanguage England
+====================================================================
+
+See :issue:`91099`
+
+Description
+===========
+
+The flag identifier for England ("england") in the SiteLanguage was broken and resulted
+in a broken icon in the backend.
+To fix that issue the identifier has been changed ("gb-eng") and results in a proper icon.
+
+If you used this flag identifier in your Frontend setup, double check whether things are
+still working as desired.
+
+.. index:: Backend, ext:backend