--- /dev/null
+commit 61ae454e1579d02736c48e3468a3237429214cdf
+Author: Ismaƫl Bouya <ismael.bouya@normalesup.org>
+Date: Tue Jun 2 13:03:04 2020 +0200
+
+ Add %tx to index_format
+
+diff --git a/hdrline.c b/hdrline.c
+index 9224c6641..1594ed729 100644
+--- a/hdrline.c
++++ b/hdrline.c
+@@ -575,6 +575,7 @@ static const char *index_format_str(char *buf, size_t buflen, size_t col, int co
+ const struct Address *from = TAILQ_FIRST(&e->env->from);
+ const struct Address *to = TAILQ_FIRST(&e->env->to);
+ const struct Address *cc = TAILQ_FIRST(&e->env->cc);
++ const struct Address *x_orig_to = TAILQ_FIRST(&e->env->x_original_to);
+
+ buf[0] = '\0';
+ switch (op)
+@@ -1192,13 +1193,18 @@ static const char *index_format_str(char *buf, size_t buflen, size_t col, int co
+
+ case 't':
+ tmp[0] = '\0';
+- if (!check_for_mailing_list(&e->env->to, "To ", tmp, sizeof(tmp)) &&
+- !check_for_mailing_list(&e->env->cc, "Cc ", tmp, sizeof(tmp)))
+- {
+- if (to)
+- snprintf(tmp, sizeof(tmp), "To %s", mutt_get_name(to));
+- else if (cc)
+- snprintf(tmp, sizeof(tmp), "Cc %s", mutt_get_name(cc));
++ if (src[0] == 'x') {
++ snprintf(tmp, sizeof(tmp), "%s", mutt_get_name(x_orig_to));
++ src++;
++ } else {
++ if (!check_for_mailing_list(&e->env->to, "To ", tmp, sizeof(tmp)) &&
++ !check_for_mailing_list(&e->env->cc, "Cc ", tmp, sizeof(tmp)))
++ {
++ if (to)
++ snprintf(tmp, sizeof(tmp), "To %s", mutt_get_name(to));
++ else if (cc)
++ snprintf(tmp, sizeof(tmp), "Cc %s", mutt_get_name(cc));
++ }
+ }
+ mutt_format_s(buf, buflen, prec, tmp);
+ break;