1 files changed, 3 insertions, 0 deletions
diff --git a/utf8.c b/utf8.c
index 1773f2e34c..69ab6b977b 100644
--- a/utf8.c
+++ b/utf8.c
@@ -1091,6 +1091,9 @@ see sv_recode_to_utf8().
 =cut
 */
 
+/* This logic is duplicated in sv_catpvn_flags, so any bug fixes will
+   likewise need duplication. */
+
 U8*
 Perl_bytes_to_utf8(pTHX_ const U8 *s, STRLEN *len)
 {