Fixed in f19a4945.

RFC 2109 was obsoleted by RFC 2965 which was obsoleted by RFC 6265.

Unused since its introduction in dd5320d1.

Required for IE<7.

Unused since d2180a6b.

Unused since fa0653cd.

Unused since its introduction in dd5320d1.

Required for IE<9.

Thanks Claude Paroz for the initial patch.

Fixed #30259 -- Added support for admin_order_field attribute on properties in ModelAdmin.list_display.

Thanks Jan Baryła for the detailed report and the reduced test case.

Thanks Can Sarıgöl for the suggested trimming approach.

Reverted cc79c7ee.

After 3a505c70, all _prepare() methods
return self.

This makes Subquery a thin wrapper over Query and makes sure it respects
the Expression source expression API by accepting the same number of
expressions as it returns. Refs #30188.

It also makes OuterRef usable in Query without Subquery wrapping. This
should allow Query's internals to more easily perform subquery push downs
during split_exclude(). Refs #21703.

Subquery only uses Query.