-output=$(notmuch search id:${gen_msg_id} 2>&1 | notmuch_show_sanitize)
-test_expect_equal "$output" "thread:0000000000000004 2001-01-05 [1/1] Notmuch Test Suite; encoded-words-backto-back (inbox unread)"
+output=$(notmuch search id:${gen_msg_id} 2>&1 | notmuch_search_sanitize)
+test_expect_equal "$output" "thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; encoded-words-backto-back (inbox unread)"