Fixed #8175: don't open files we're about to close. This was a pesky bug to track down; thanks to charmless for tracking it down.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8637 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/file_storage/models.py

@@ -40,5 +40,11 @@ if Image:
 >>> p.mug_width
 16
 
+# Bug #8175: correctly delete files that have been removed off the file system.
+>>> import os
+>>> p2 = Person(name="Fred")
+>>> p2.mugshot.save("shot", ContentFile(image_data))
+>>> os.remove(p2.mugshot.path)
+>>> p2.delete()
 """}