mbox: Fixed mailbox_update() for changing mailbox GUID.

diff --git a/src/lib-storage/index/mbox/mbox-storage.c b/src/lib-storage/index/mbox/mbox-storage.c
index fe4c613de77c9bc8f6f52fafb6af2e9c3c6111d2..955c71ffaf669ad0b6bcd2817240b35afb06e957 100644 (file)
--- a/src/lib-storage/index/mbox/mbox-storage.c
+++ b/src/lib-storage/index/mbox/mbox-storage.c
@@ -498,7 +498,8 @@ mbox_mailbox_update(struct mailbox *box, const struct mailbox_update *update)
                        return -1;
        }
 
-       if (update->uid_validity != 0 || update->min_next_uid != 0) {
+       if (update->uid_validity != 0 || update->min_next_uid != 0 ||
+           !guid_128_is_empty(update->mailbox_guid)) {
                mbox->sync_hdr_update = update;
                ret = mbox_sync(mbox, MBOX_SYNC_HEADER | MBOX_SYNC_FORCE_SYNC |
                                MBOX_SYNC_REWRITE);