test_begin_subtest 'First subject preserved'
cat <<EOF > EXPECTED
-thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; message 1 (inbox unread)
+thread:XXX 2001-01-05 [1/1(2)] Notmuch Test Suite; message 1 (inbox unread)
EOF
notmuch search id:duplicate | notmuch_search_sanitize > OUTPUT
test_expect_equal_file EXPECTED OUTPUT