Timestamp in filename issue

[come-nc]

I am not completely sure how this affects features, but there is an inconsistency between file URL in UI and database.

The issue is that files_trashbin/Sabre/TrashFile uses getLastModified to build the filename, while in other places we use deleted_time.

I think for legacy backend mtime and deletedtime are the same thing because in apps/files_trashbin/lib/Helper.php:88 the timestamp from filename is put in mtime.

We can either change groupfolders trashbin backend to fake mtime to deleted_time or change files_trashbin to consistently use getDeletedTime instead of getLastModified or getMTime.

[come-nc]

@icewind1991 I think we can close this one?

[joshtrichards]

#2714 (comment)
Fixed in nextcloud/server#42558