id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
23322	CircularDependencyError in migrations	Gabe Jackson	Markus Holtermann	"django.db.migrations.graph.CircularDependencyError

Test Project is located here: https://github.com/gabejackson/django-migration-test/tree/circ_dep_1

Steps to reproduce:
Install stable/1.7.x branch in venv
./manage.py makemigrations 
... [OK]
./manage.py migrate

{{{
Traceback (most recent call last):
  File ""./manage.py"", line 10, in <module>
    execute_from_command_line(sys.argv)
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/core/management/__init__.py"", line 385, in execute_from_command_line
    utility.execute()
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/core/management/__init__.py"", line 377, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/core/management/base.py"", line 288, in run_from_argv
    self.execute(*args, **options.__dict__)
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/core/management/base.py"", line 338, in execute
    output = self.handle(*args, **options)
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/core/management/commands/migrate.py"", line 106, in handle
    plan = executor.migration_plan(targets)
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/executor.py"", line 49, in migration_plan
    for migration in self.loader.graph.forwards_plan(target):
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/graph.py"", line 55, in forwards_plan
    return self.dfs(node, lambda x: self.dependencies.get(x, set()))
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/graph.py"", line 121, in dfs
    return _dfs(start, get_children, [])
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/graph.py"", line 113, in _dfs
    results = _dfs(n, get_children, path) + results
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/graph.py"", line 113, in _dfs
    results = _dfs(n, get_children, path) + results
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/graph.py"", line 113, in _dfs
    results = _dfs(n, get_children, path) + results
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/graph.py"", line 113, in _dfs
    results = _dfs(n, get_children, path) + results
  File ""/Users/gabejackson/venv/django-1.7/src/django/django/db/migrations/graph.py"", line 105, in _dfs
    raise CircularDependencyError(path[path.index(start):] + [start])
django.db.migrations.graph.CircularDependencyError: [(u'a', u'0001_initial'), ('c', u'0001_initial'), (u'b', u'0001_initial'), (u'a', u'0001_initial')]
}}}"	Bug	closed	Migrations	1.7-rc-2	Release blocker	fixed	migrations, circular dependency		Accepted	1	0	0	0	0	0