fix: when unable EnableHistoryForNewMembers, new group member can read last one message. (#3001)

Author: icey-yu

internal/rpc/group/notification.go

@@ -18,9 +18,10 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/openimsdk/open-im-server/v3/pkg/rpcli"
 	"time"
 
+	"github.com/openimsdk/open-im-server/v3/pkg/rpcli"
+
 	"github.com/openimsdk/open-im-server/v3/pkg/authverify"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/convert"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/servererrs"
@@ -532,7 +533,7 @@ func (g *NotificationSender) GroupApplicationAgreeMemberEnterNotification(ctx co
 		if err != nil {
 			return err
 		}
-		if err := g.msgClient.SetUserConversationsMinSeq(ctx, conversationID, entrantUserID, maxSeq); err != nil {
+		if err := g.msgClient.SetUserConversationsMinSeq(ctx, conversationID, entrantUserID, maxSeq+1); err != nil {
 			return err
 		}
 	}
@@ -586,7 +587,7 @@ func (g *NotificationSender) MemberEnterNotification(ctx context.Context, groupI
 		if err != nil {
 			return err
 		}
-		if err := g.msgClient.SetUserConversationsMinSeq(ctx, conversationID, []string{entrantUserID}, maxSeq); err != nil {
+		if err := g.msgClient.SetUserConversationsMinSeq(ctx, conversationID, []string{entrantUserID}, maxSeq+1); err != nil {
 			return err
 		}
 	}