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
23844	Use topological sort for migration operation dependency resolution	Patryk Zawadzki	nobody	"A fixed implementation is provided in https://github.com/django/django/pull/3546

The initial implementation was provided by vanschelven, accepted and commited as part of https://github.com/django/django/pull/3525. It however broke in Python 3 due to how `__eq__` and `__hash__` behave.

I opted not to provide a default implementation of `deconstruct` method to avoid arguments moving between `args` and `kwargs` depending on invocation (like the deconstruction of model fields it always produces the canonical form)."	Cleanup/optimization	closed	Migrations	dev	Normal	fixed		info+coding@…	Ready for checkin	1	0	0	0	0	0