Blazor page reloading after db update ?

protected override async Task OnInitializedAsync()
  {
    var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
    comments = await dbContext.Comments.ToListAsync();
    totalComments = comments.Count;
    var user = authState.User;

    if (user.Identity.IsAuthenticated)
    {
      loggedInUserGuid = user.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier)?.Value;
    }

    appUser = await dbContext.Users.FindAsync(loggedInUserGuid);
    lastSeenComments = appUser.LastSeenComments;
    var groupedComments = comments.GroupBy(c => c.CreatedAt <= lastSeenComments)
      .ToDictionary(g => g.Key, g => g.ToList());

    oldComments = groupedComments.GetValueOrDefault(true, new List<Comment>());
    newComments = groupedComments.GetValueOrDefault(false, new List<Comment>());

    appUser.LastSeenComments = DateTime.UtcNow;
    dbContext.Users.Update(appUser);
    await dbContext.SaveChangesAsync();

  }