use data-file to retrieve filename

forward port of https://github.com/owncloud/core/pull/5647#discussion-diff-7341163
trust me, I know what I'm doing

diff --git a/apps/files/js/files.js b/apps/files/js/files.js
index 389bf1bf197a8d2ff79a3d228bc5c96e29e33cb1..950dae2f92526deaa159f15511cbfd339bbebde8 100644 (file)
--- a/apps/files/js/files.js
+++ b/apps/files/js/files.js
@@ -487,7 +487,7 @@ var folderDropOptions={
                        return false;
                }
 
-               var target = $.trim($(this).find('.nametext').text());
+               var target = $(this).parent('tr').data('file');
 
                var files = ui.helper.find('tr');
                $(files).each(function(i,row) {