[gricha]

assigned:my_teams and assigned_or_suggested:my_teams matched every issue when the caller belongs to no teams.

my_teams resolves to the caller's teams. With none, the list is empty: assigned_to_filter([]) and assigned_or_suggested_filter([]) returned an empty Q(), which filters nothing. The inbox sort had the same gap: if owner_search: skipped the owner filter on an empty list.

Both filters now return Q(pk__in=[]) for an empty list, so the search matches nothing. !assigned:my_teams still matches everything, since excluding nothing keeps every row. Lists with at least one actor build the same query as before.

Who hit this: members with no teams, and API key / org token callers. They have no user, so get_teams_for_users returns no teams.

Found while narrowing request.user for service accounts, which have no teams either.

Evidence: test_my_teams_without_teams_matches_nothing (search backend) and test_sort_by_inbox_my_teams_without_teams (inbox sort) fail on master:

E   assert [<Group ...>] == []
E     Left contains 2 more items, first extra item: <Group ...>
E   AssertionError: assert [{'id': '681'...}] == []
FAILED tests/snuba/search/test_backend.py::EventsSnubaSearchTest::test_my_teams_without_teams_matches_nothing
FAILED tests/sentry/issues/endpoints/test_organization_group_index.py::GroupListTest::test_sort_by_inbox_my_teams_without_teams
2 failed, 284 deselected

and pass with the fix:

2 passed, 284 deselected