vfs: add open files to directories

vfs/read_write.go

@@ -104,6 +104,7 @@ func (fh *RWFileHandle) openPending(truncate bool) (err error) {
 	fh.File = fd
 	fh.opened = true
 	fh.d.vfs.cache.open(fh.osPath)
+	fh.d.addObject(fh.file) // make sure the directory has this object in it now
 	return nil
 }
 

vfs/write.go

@@ -51,6 +51,7 @@ func newWriteFileHandle(d *Dir, f *File, remote string) (*WriteFileHandle, error
 	}()
 	fh.file.addWriter(fh)
 	fh.file.setSize(0)
+	d.addObject(fh.file) // make sure the directory has this object in it now
 	return fh, nil
 }