dbox: Fixed pop3.order caching for mails without no specified order.

diff --git a/src/lib-storage/index/dbox-common/dbox-mail.c b/src/lib-storage/index/dbox-common/dbox-mail.c
index 3cfe90bba6916a1904f236ad75b7d641ab1e206a..ddd93bdaa61dda53672985ab0262fe45708d2d0c 100644 (file)
--- a/src/lib-storage/index/dbox-common/dbox-mail.c
+++ b/src/lib-storage/index/dbox-common/dbox-mail.c
@@ -182,7 +182,15 @@ dbox_get_cached_metadata(struct dbox_mail *mail, enum dbox_metadata_key key,
                        i_assert(str_len(str) == sizeof(order));
                        memcpy(&order, str_data(str), sizeof(order));
                        str_truncate(str, 0);
-                       str_printfa(str, "%u", order);
+                       if (order != 0)
+                               str_printfa(str, "%u", order);
+                       else {
+                               /* order=0 means it doesn't exist. we don't
+                                  want to return "0" though, because then the
+                                  mails get ordered to beginning, while
+                                  nonexistent are supposed to be ordered at
+                                  the end. */
+                       }
                }
                *value_r = str_c(str);
                return 0;