Index: typo3/sysext/backend/Classes/Tree/View/FolderTreeView.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- typo3/sysext/backend/Classes/Tree/View/FolderTreeView.php	(revision )
+++ typo3/sysext/backend/Classes/Tree/View/FolderTreeView.php	(revision )
@@ -261,7 +261,7 @@
 			$isOpen = $this->stored[$storageHashNumber][$folderHashSpecUID] || $this->expandFirst;
 			// Set PM icon:
 			$cmd = $this->generateExpandCollapseParameter($this->bank, !$isOpen, $rootLevelFolder);
-			if (!$storageObject->isBrowsable() || $this->getNumberOfSubfolders($storageObject->getRootLevelFolder()) === 0) {
+			if (!$storageObject->isBrowsable() || $this->getNumberOfSubfolders($rootLevelFolders) === 0) {
 				$rootIcon = 'blank';
 			} elseif (!$isOpen) {
 				$rootIcon = 'plusonly';
\ No newline at end of file