Error when launching a new Editor window from the options in the menu.

[dalthviz]

Description of your problem

What steps will reproduce the problem?

1. Click the "New window" option from the menu of the editor.
2. The new window is created but also a traceback appear.

What is the expected output? What do you see instead?

The new window without errors

Please provide any additional information below

Traceback (most recent call last):
  File "C:\Users\Daniel\Anaconda3\lib\site-packages\spyder\plugins\editor.py", line 1481, in refresh_save_all_action
    for finfo in editorstack.data)
AttributeError: 'NoneType' object has no attribute 'data'
Traceback (most recent call last):
  File "C:\Users\Daniel\Anaconda3\lib\site-packages\spyder\plugins\editor.py", line 1481, in refresh_save_all_action
    for finfo in editorstack.data)
AttributeError: 'NoneType' object has no attribute 'data'
Traceback (most recent call last):
  File "C:\Users\Daniel\Anaconda3\lib\site-packages\spyder\plugins\editor.py", line 1481, in refresh_save_all_action
    for finfo in editorstack.data)
AttributeError: 'NoneType' object has no attribute 'data'
Traceback (most recent call last):
  File "C:\Users\Daniel\Anaconda3\lib\site-packages\spyder\plugins\editor.py", line 1481, in refresh_save_all_action
    for finfo in editorstack.data)
AttributeError: 'NoneType' object has no attribute 'data'
Traceback (most recent call last):
  File "C:\Users\Daniel\Anaconda3\lib\site-packages\spyder\plugins\editor.py", line 1481, in refresh_save_all_action
    for finfo in editorstack.data)
AttributeError: 'NoneType' object has no attribute 'data'
Traceback (most recent call last):
  File "C:\Users\Daniel\Anaconda3\lib\site-packages\spyder\plugins\editor.py", line 1481, in refresh_save_all_action
    for finfo in editorstack.data)
AttributeError: 'NoneType' object has no attribute 'data'

Versions and main components

• Spyder Version: 3.1.2
• Python Version: 3.5.2
• Operating system: Windows 8.1 64bits