Merge pull request #2562 from kinglozzer/2561-virtualpage-savetreenode

FIX: Incorrect method call in savetreenode (fixes #2561)

code/Controllers/CMSMain.php

@@ -818,7 +818,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
             $virtualPages = VirtualPage::get()->filter("CopyContentFromID", $node->ID);
             foreach ($virtualPages as $virtualPage) {
                 $statusUpdates['modified'][$virtualPage->ID] = array(
-                    'TreeTitle' => $virtualPage->TreeTitle()
+                    'TreeTitle' => $virtualPage->TreeTitle
                 );
             }