test: add known broken test for inlining in emacs/reply

The same mitigation already applied for show should also be applied
for reply

test/T453-emacs-reply.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+test_description="emacs reply"
+. $(dirname "$0")/test-lib.sh || exit 1
+. $NOTMUCH_SRCDIR/test/test-lib-emacs.sh || exit 1
+
+EXPECTED=$NOTMUCH_SRCDIR/test/emacs-show.expected-output
+
+test_require_emacs
+
+add_email_corpus attachment
+
+test_begin_subtest "tar not inlined by default"
+test_subtest_known_broken
+test_emacs '(notmuch-mua-new-reply "id:874llc2bkp.fsf@curie.anarc.at")
+	(test-visible-output "OUTPUT.raw")'
+cat <<EOF > EXPECTED
+From: Notmuch Test Suite <test_suite@notmuchmail.org>
+To: Antoine Beaupré <anarcat@orangeseeds.org>
+Subject: Re: bug: "no top level messages" crash on Zen email loops
+In-Reply-To: <874llc2bkp.fsf@curie.anarc.at>
+Fcc: MAIL_DIR/sent
+--text follows this line--
+Antoine Beaupré <anarcat@orangeseeds.org> writes:
+
+> And obviously I forget the frigging attachment.
+>
+>
+> PS: don't we have a "you forgot to actually attach the damn file" plugin
+> when we detect the word "attachment" and there's no attach? :p
+EOF
+notmuch_dir_sanitize < OUTPUT.raw > OUTPUT
+test_expect_equal_file EXPECTED OUTPUT
+
+test_done