Comment 1 for bug 1701883

Same on Arch Linux, zim 0.67-1. An attempt to attach a file leads to

This is zim 0.66
Platform: posix
Locale: ru_RU UTF-8
FS encoding: UTF-8
Python: (2, 7, 13, 'final', 0)
Gtk: (2, 24, 31)
Pygtk: (2, 24, 0)
Zim revision is:
  branch: zim
  revision: 871 <email address hidden>
  date: 2017-04-28 12:31:55 +0200

======= Traceback =======
  File "/usr/lib/python2.7/site-packages/zim/actions.py", line 149, in do_activate
    self.__get__(instance, instance.__class__)()
  File "/usr/lib/python2.7/site-packages/zim/actions.py", line 132, in func
    self.func(instance, *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/zim/gui/__init__.py", line 1178, in attach_file
    AttachFileDialog(self._mainwindow, self.notebook, path).run()
  File "/usr/lib/python2.7/site-packages/zim/gui/__init__.py", line 2827, in __init__
    self.add_shortcut(notebook, path)
  File "/usr/lib/python2.7/site-packages/zim/gui/widgets.py", line 3661, in add_shortcut
    self.filechooser.add_shortcut_folder(page.source.dir.path)
GError: Shortcut file:///..... already exists