django-debug-toolbar/django-debug-toolbar — pull request #237 by andialbrecht (2011-11-30 09:15:16+00:00)
Title: Convert settings.INSTALLED_APPS to list before concatenating django.

According to the Django documentation settings.INSTALLED_APPS is a
tuple. To go for sure that only list + list are concatenated,
settings.INSTALLED_APPS is converted to list type before adding
['django'].