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
36365	Admin filter_horziontal with formfield_for_manytomany hides existing records	Ramon		"Django admin filter_horizontal for manytomany field should show all existing relations in the right-side pane, even when formfield_for_manytomany updates the queryset to not show that relation in the left-side pane. It is misleading to the user to not show the existing relation.

Working example attached (example.zip).
Database: club, member, team.
member and team belong to one club
team consists of members
member can transfer to another club, causing the issue.

admin.py contains two versions of the team admin model (1 and 2)
Screenshots for each admin model usage are attached.
In screenshot 2 the record Member (5) is not shown in the right-side pane, while it is present in the database.
"	Bug	closed	contrib.admin	4.2	Normal	invalid	admin, filter_horizontal	Ramon	Unreviewed	0	0	0	0	0	0