--- newprinter.py	2018-05-31 12:15:33.253047156 +0300
+++ new_newprinter.py	2018-05-31 12:48:56.335861858 +0300
@@ -2242,14 +2242,12 @@
         find_nw_iter = model.append (network_iter,
                                      row=[network_dict['device-info'],
                                           PhysicalDevice (network), False])
-        model.insert_after (network_iter, find_nw_iter, row=['', None, True])
         smbdev_dict = { 'device-class': 'network',
                         'device-info': _("Windows Printer via SAMBA") }
         smbdev = cupshelpers.Device ('smb', **smbdev_dict)
         find_smb_iter = model.append (network_iter,
                                      row=[smbdev_dict['device-info'],
                                           PhysicalDevice (smbdev), False])
-        model.insert_after (find_nw_iter, find_smb_iter, row=['', None, True])
         self.devices_uri_iter = uri_iter
         self.devices_find_nw_iter = find_nw_iter
         self.devices_network_iter = network_iter