[BUGFIX] Add missing int-cast for checking uid zero

The change #24250 introduced a strict comparison without ensuring
proper data types on both sides of the comparison.

Add the missing int-cast in \TYPO3\CMS\Backend\Tree\Pagetree\Commands

Resolves: #67138
Releases: master,6.2
Change-Id: I51dc33fd64a6d42963237ac49e0385c2abf66b71
Reviewed-on: http://review.typo3.org/39727


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>

typo3/sysext/backend/Classes/Tree/Pagetree/Commands.php

@@ -345,7 +345,7 @@ class Commands {
 		$subNode->setEditableText($text);
 		$subNode->setText(htmlspecialchars($visibleText), $field, $prefix, htmlspecialchars($suffix) . $stat);
 		$subNode->setQTip($qtip);
-		if ($record['uid'] !== 0) {
+		if ((int)$record['uid'] !== 0) {
 			$spriteIconCode = IconUtility::getSpriteIconForRecord('pages', $record);
 		} else {
 			$spriteIconCode = IconUtility::getSpriteIcon('apps-pagetree-root');