update

internal/logic/domain/group/model/group.go

@@ -454,9 +454,20 @@ func (g *Group) PushAddMember(ctx context.Context, optUserId int64, addedIds []i
 	//
 	optUser := usersResp.Users[optUserId]
 	if optUserId == -1 {
+		if optUser == nil {
+			optUser = &pb.User{
+				UserId: optUserId,
+			}
+			optUser = &pb.User{}
+		}
 		optUser.Nickname = "后台操作"
 	}
 	if optUserId == -2 {
+		if optUser == nil {
+			optUser = &pb.User{
+				UserId: optUserId,
+			}
+		}
 		optUser.Nickname = "扫码加入"
 	}
 	err = g.PushMessage(ctx, pb.PushCode_PC_ADD_GROUP_MEMBERS, &pb.AddGroupMembersPush{