[BUGFIX] Initialize request variable if not existing

Always initialize the request variable to avoid errors in conditions.

Resolves: #106384
Releases: main, 13.4
Change-Id: I13252c39561f02588f09fcc2eaceb70c1bda56e0
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/88755
Reviewed-by: Christian Rath-Ulrich <christian@rath-ulrich.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Rath-Ulrich <christian@rath-ulrich.de>

Author: georgringer

typo3/sysext/core/Classes/TypoScript/IncludeTree/Visitor/IncludeTreeConditionMatcherVisitor.php

@@ -134,6 +134,8 @@ public function initializeExpressionMatcherWithVariables(array $variables): void
         // if not, create an instance from ServerRequestInterface and set it.
         if (isset($variables['request']) && !($variables['request'] instanceof RequestWrapper)) {
             $variables['request'] = new RequestWrapper($variables['request']);
+        } elseif (!isset($variables['request'])) {
+            $variables['request'] = new RequestWrapper(null);
         }
 
         // We do not expose pageId, rootLine and fullRootLine to conditions directly.