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
29230	Incorrect behavior of QuerySet.prefetch_related() in some circumstances during multilevel data prefetching	Alex Sichkar	Paulo	"In some circumstances prefetched data might be overwritten.

IMHO this ticket is related to the issue:
https://code.djangoproject.com/ticket/24873

If I revert changes from this pull request:
https://github.com/django/django/pull/4723
there is no such problem.

Prepared sample project with test case to reproduce the issue.
"	Bug	closed	Database layer (models, ORM)	1.11	Normal	fixed	prefetch_related		Accepted	0	0	0	0	0	0