diff --git a/base/admin.py b/base/admin.py
index e9caf1ca6..0d8e82faf 100644
--- a/base/admin.py
+++ b/base/admin.py
@@ -2,6 +2,8 @@ from django.contrib import admin
 
 from base.models import ProblemaMigracao
 from sapl.utils import register_all_models_in_admin
+from django.contrib import admin
+from base.models import ProblemaMigracao
 
 register_all_models_in_admin(__name__)
 
diff --git a/base/models.py b/base/models.py
index cff2a32f2..8af741c0d 100644
--- a/base/models.py
+++ b/base/models.py
@@ -2,7 +2,8 @@ from django.contrib.contenttypes.fields import GenericForeignKey
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
-
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.contrib.contenttypes.models import ContentType
 from sapl.utils import UF
 
 
diff --git a/legacy/migration.py b/legacy/migration.py
index c4f4103d6..f1210d363 100644
--- a/legacy/migration.py
+++ b/legacy/migration.py
@@ -107,8 +107,6 @@ def get_fk_related(field, value, label=None):
                     field.name, value,
                     field.model.__name__, label or '---')
             if value == 0:
-                # se FK == 0, criamos um stub e colocamos o valor '????????'
-                # para qualquer CharField ou TextField que possa haver
                 if not field.null:
                     fields_dict = get_fields_dict(field.related_model)
                     value = mommy.make(field.related_model,