Name Format Config error and whitespace stripping.

Created by: TargetZ3R0

In reference to V2-dev branch:

The following error is generated when clicking on Name Format Config in Admin->Services->Name Format Configs as shown here:

https://i.imgur.com/SZ6gVDI.png

Also, please note that the Name Format Config that was supplied is adhered to except all spaces are stripped - so for example

the config shows: [{corp_ticker}] {nickname} Discord would see [{corp_ticker}]{nickname} --> [NZHM.]ShirleyC instead of [NZHM.] Shirley C

This also applies to automatically generated groups on the Discord Server, all spaces are stripped.

Traceback:

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner
  35.             response = get_response(request)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  128.                 response = self.process_exception_by_middleware(e, request)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  126.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/contrib/admin/options.py" in wrapper
  574.                 return self.admin_site.admin_view(view)(*args, **kwargs)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  44.         response = view_func(request, *args, **kwargs)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/contrib/admin/sites.py" in inner
  223.             return view(request, *args, **kwargs)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/contrib/admin/options.py" in change_view
  1556.         return self.changeform_view(request, object_id, form_url, extra_context)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/utils/decorators.py" in _wrapper
  62.             return bound_func(*args, **kwargs)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/utils/decorators.py" in bound_func
  58.                 return func.__get__(self, type(self))(*args2, **kwargs2)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/contrib/admin/options.py" in changeform_view
  1450.             return self._changeform_view(request, object_id, form_url, extra_context)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/django/contrib/admin/options.py" in _changeform_view
  1507.                 form = ModelForm(instance=obj)

File "/home/badfellas/venv/auth/lib/python3.5/site-packages/allianceauth/services/admin.py" in __init__
  12.             SERVICE_CHOICES.append((self.instance.field, self.instance.field))

Exception Type: AttributeError at /admin/services/nameformatconfig/6/change/
Exception Value: 'NameFormatConfig' object has no attribute 'field'