write_close the session when scanning files or music

apps/files/ajax/scan.php

@@ -10,6 +10,7 @@ if(!$checkOnly){
 	$eventSource=new OC_EventSource();
 }
 
+session_write_close();
 
 //create the file cache if necesary
 if($force or !OC_FileCache::inCache('')){

apps/media/ajax/api.php

@@ -46,6 +46,9 @@ if(!isset($arguments['album'])){
 if(!isset($arguments['search'])){
 	$arguments['search']='';
 }
+
+session_write_close();
+
 OC_MEDIA_COLLECTION::$uid=OCP\USER::getUser();
 if($arguments['action']){
 	switch($arguments['action']){