BUGFIX: re-enable broken link notification using BackLinkTracking() (…

…this was broken since r101127 (from r106360)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@112580 467b73ca-7a2a-4603-9d3b-597d59a354a9

code/AssetTableField.php

@@ -281,11 +281,13 @@ public function deletemarked($request) {
 				sprintf("\"File\".\"ID\" IN (%s)", Convert::raw2sql(implode(',', $fileIDs)))
 			);
 			if($files) {
+				$brokenPages = array();
 				foreach($files as $file) {
+					$brokenPages = array_merge($brokenPages, $file->BackLinkTracking()->toArray());
 					$file->delete();
 					$numFiles++;
 				}
-				if($brokenPages = Notifications::getItems('BrokenLink')) {
+				if($brokenPages) {
 					$brokenPageList = "  ". _t('AssetAdmin.NOWBROKEN', 'These pages now have broken links:') . '<ul>';
 					foreach($brokenPages as $brokenPage) {
 						$brokenPageList .= "<li style=&quot;font-size: 65%&quot;>" . $brokenPage->Breadcrumbs(3, true) . '</li>';