Valgrind warning fix

--HG--
branch : HEAD

diff --git a/src/lib-index/mail-index-map.c b/src/lib-index/mail-index-map.c
index e25c82ba9f51175357163282214f1218519df676..3c609d6bd0af35be7710b980283b5c660739e1dd 100644 (file)
--- a/src/lib-index/mail-index-map.c
+++ b/src/lib-index/mail-index-map.c
@@ -998,7 +998,8 @@ static void mail_index_map_copy_header(struct mail_index_map *dest,
 {
        /* use src->hdr copy directly, because if we got here
           from syncing it has the latest changes. */
-       dest->hdr = src->hdr;
+       if (src != dest)
+               dest->hdr = src->hdr;
        if (dest->hdr_copy_buf != NULL) {
                if (src == dest)
                        return;