fix: improve conversation and report stability

server/store/store.go

@@ -3136,6 +3136,9 @@ func (messagesMapper) Save(tenantID types.TenantID, msg *types.Message, attachme
 		err = tenantAdp.TenantGroupMessageSave(tenantID, msg)
 	} else {
 		err = tenantAdp.TenantMessageSave(tenantID, msg)
+		if err == types.ErrDuplicate && clientMsgID == "" {
+			err = retryTenantMessageSaveAfterSeqConflict(tenantAdp, tenantID, msg)
+		}
 	}
 	if err != nil {
 		if isGroupMessage && err == types.ErrDuplicate && clientMsgID != "" {
@@ -3217,6 +3220,21 @@ func (messagesMapper) Save(tenantID types.TenantID, msg *types.Message, attachme
 	return &types.MessageSaveResult{SeqId: msg.SeqId, MarkedReadBySender: markedReadBySender}, nil
 }
 
+func retryTenantMessageSaveAfterSeqConflict(tenantAdp adapter.TenantBusinessAdapter, tenantID types.TenantID, msg *types.Message) error {
+	latest, err := tenantAdp.TenantMessageGetAll(tenantID, msg.Topic, types.ZeroUid, &types.QueryOpt{Before: 1 << 62, Limit: 1})
+	if err != nil {
+		return err
+	}
+	if len(latest) == 0 || latest[0].SeqId < msg.SeqId {
+		return types.ErrDuplicate
+	}
+	msg.SeqId = latest[0].SeqId + 1
+	if err = tenantAdp.TenantTopicUpdateOnMessage(tenantID, msg.Topic, msg); err != nil {
+		return err
+	}
+	return tenantAdp.TenantMessageSave(tenantID, msg)
+}
+
 func normalizeClientMsgID(head types.KVMap) (string, error) {
 	if head == nil {
 		return "", nil