Python 3's SimpleCookie treats all values as strings. Passing a bytes
object coerces to the repr value.

Unused since its introduction in 79e68c22.

Thanks Tim Graham for noticing the issue.

These attributes are defined on BaseModelAdmin and thus should always
be there.

Regression in 38a5a23c.

Modifying self.s1 created in setUpTestData() leaked state.

Regression in 45585d3c.

Thanks Tim Graham for the review.

Thanks Tim Graham and Jani Tiainen for reviews.

Thanks Shai Berger and Tim Graham for reviews.

Forward port of 02158a78 from stable/1.11.x

Forwardport of 877d7b71 from stable/1.11.x

Regression in 89053725.

Fixed #28209 -- Made date-based generic views return a 404 rather than crash when given an out of range date.