+test_begin_subtest "setup consistent with config-set for single items"
+# note this relies on the config state from the previous test.
+notmuch --config=new-notmuch-config config list > list.setup
+notmuch --config=new-notmuch-config config set search.exclude_tags baz
+notmuch --config=new-notmuch-config config list > list.config
+test_expect_equal_file list.setup list.config
+