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
30947	Apply data structure best practices to the django.contrib models and docs	Jon Dufresne	Alex Morega	"In PR https://github.com/django/django/pull/11267 an argument is presented that explains why `list` is often the best choice for Model.Meta data structures. This landed as https://github.com/django/django/commit/97d3321e89c8d4434927bdbc308db1ccffa99d3b.

Now change all models in `django.contrib` to follow our own stated best practices. People often look at existing examples for how to write new code, so we might as well promote the standards we document."	Cleanup/optimization	closed	Documentation	dev	Normal	fixed		Johannes Maron	Ready for checkin	1	0	0	0	1	0