Drive Edit modal popup about no binding found not displayed if user not provided in the URL

2016-02-10 09:02:16,572 9476 8248 DEBUG    nxdrive.drive_edit DriveEdit load: 'u'nxdrive://edit/http/sisiv-na-nux01:80/nuxeo/repo/default/nxdocid/19207c05-b594-4c15-92dc-8e7ed74150b3/filename/Power%20Point%20ppt.ppt''
2016-02-10 09:02:16,572 9476 8248 WARNING  nxdrive.drive_edit No engine found for http://sisiv-na-nux01:80/nuxeo(19207c05-b594-4c15-92dc-8e7ed74150b3)
2016-02-10 09:02:16,619 6008 1780 TRACE    nxdrive.engine.watcher.local_watcher DriveFSROOT: Nuxeo Drive Int : need: Nuxeo Drive Int
2016-02-10 09:02:16,619 6008 9656 TRACE    nxdrive.engine.watcher.local_watcher Queueing watchdog: <DirCreatedEvent: src_path=u'D:\\Users\\PDRD04781\\Documents\\Nuxeo Drive Int\\.caseTest_fmeevj'>
2016-02-10 09:02:16,619 6008 9656 TRACE    nxdrive.engine.watcher.local_watcher Queueing watchdog: <FileDeletedEvent: src_path=u'D:\\Users\\PDRD04781\\Documents\\Nuxeo Drive Int\\.caseTest_fmeevj'>
2016-02-10 09:02:16,635 6008 5980 TRACE    nxdrive.engine.watcher.local_watcher watchdog event: <DirCreatedEvent: src_path=u'D:\\Users\\PDRD04781\\Documents\\Nuxeo Drive Int\\.caseTest_fmeevj'>
2016-02-10 09:02:16,635 6008 5980 DEBUG    nxdrive.engine.watcher.local_watcher Handling watchdog event [created] on u'D:\\Users\\PDRD04781\\Documents\\Nuxeo Drive Int\\.caseTest_fmeevj'
2016-02-10 09:02:16,635 6008 5980 TRACE    nxdrive.engine.watcher.local_watcher watchdog event: <FileDeletedEvent: src_path=u'D:\\Users\\PDRD04781\\Documents\\Nuxeo Drive Int\\.caseTest_fmeevj'>
2016-02-10 09:02:16,635 6008 5980 DEBUG    nxdrive.engine.watcher.local_watcher Handling watchdog event [deleted] on u'D:\\Users\\PDRD04781\\Documents\\Nuxeo Drive Int\\.caseTest_fmeevj'
2016-02-10 09:02:16,729 9476 8248 DEBUG    nxdrive.wui.application Qt / PyQt4 successfully imported
2016-02-10 09:02:16,729 9476 8248 ERROR    nxdrive.commandline Error executing 'launch': coercing to Unicode: need string or buffer, NoneType found
Traceback (most recent call last):
  File "nuxeo-drive-client\nxdrive\commandline.py", line 465, in handle
  File "nuxeo-drive-client\nxdrive\commandline.py", line 494, in launch
  File "nuxeo-drive-client\nxdrive\drive_edit.py", line 105, in handle_url
  File "nuxeo-drive-client\nxdrive\drive_edit.py", line 244, in edit
  File "nuxeo-drive-client\nxdrive\drive_edit.py", line 184, in _prepare_edit
  File "nuxeo-drive-client\nxdrive\drive_edit.py", line 172, in _display_modal
  File "nuxeo-drive-client\nxdrive\wui\application.py", line 86, in translate
  File "nuxeo-drive-client\nxdrive\wui\translator.py", line 103, in get
  File "nuxeo-drive-client\nxdrive\wui\translator.py", line 64, in _get
  File "nuxeo-drive-client\nxdrive\wui\translator.py", line 56, in _tokenize
TypeError: coercing to Unicode: need string or buffer, NoneType found