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 <jan@mtec-studios.ch>

Author: Messj1

lib/FilesHooks.php

@@ -573,11 +573,17 @@ 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);