Ignore shared Collective mounts when scanning files

Signed-off-by: Arno Welzel <github@arnowelzel.de>

lib/private/Files/Utils/Scanner.php

@@ -37,6 +37,7 @@
 use OC\ForbiddenException;
 use OC\Hooks\PublicEmitter;
 use OC\Lock\DBLockingProvider;
+use OCA\Collectives\Mount\CollectiveStorage;
 use OCA\Files_Sharing\SharedStorage;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\Events\BeforeFileScannedEvent;
@@ -239,9 +240,10 @@ public function scan($dir = '', $recursive = \OC\Files\Cache\Scanner::SCAN_RECUR
 			}
 
 			// don't scan received local shares, these can be scanned when scanning the owner's storage
-			if ($storage->instanceOfStorage(SharedStorage::class)) {
+			if ($storage->instanceOfStorage(SharedStorage::class) || $storage->instanceOfStorage(CollectiveStorage::class)) {
 				continue;
 			}
+
 			$relativePath = $mount->getInternalPath($dir);
 			$scanner = $storage->getScanner();
 			$scanner->setUseTransactions(false);