changes accesslist default result from empty array to skeleton

uses same skeleton as in nextcloud server sharehelper to prevent access array offset errors

Signed-off-by: Jan Messer <[email protected]>

lib/FilesHooks.php

@@ -576,11 +576,17 @@ protected function getUserPathsFromPath($path, $uidOwner) {
 		try {
 			$node = $this->rootFolder->getUserFolder($uidOwner)->get($path);
 		} catch (NotFoundException $e) {
-			return [];
+			return [
+				'users' => [],
+				'remotes' => [],
+			];
 		}
 
 		if (!$node instanceof Node) {
-			return [];
+			return [
+				'users' => [],
+				'remotes' => [],
+			];
 		}
 
 		$accessList = $this->shareHelper->getPathsForAccessList($node);