HasQueryFilter called once

[sergeushenecz]

Describe what is not working as expected.

I have the problem with the global filter.
I have the code
modelBuilder.Entity<Report>().HasQueryFilter(TenantDataFilter);
and function

 public Expression<Func<Report, bool>> TenantDataFilter
        {
            get
            {
                var expr = IsModerated.HasValue ?
                    (Expression<Func<Report, bool>>)(x => !x.IsDeleted && x.IsModerated == IsModerated) :
                    (Expression<Func<Report, bool>>)(x => !x.IsDeleted);

                return expr;
            }
        }

How do you do call every query?Do I want to change IsModerated variable in the request?
Exception message:
Stack trace:

### Steps to reproduce
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```c#
Console.WriteLine("Hello World!");

Further technical details

EF Core version: (found in project.csproj or packages.config)
Database Provider: (e.g. Microsoft.EntityFrameworkCore.SqlServer)
Operating system:
IDE: (e.g. Visual Studio 2015)

[ajcvickers]

@sergeu90 The correct way to do this is to write a single expression that handles both cases. This is because the filter itself is part of the model, which is only built once and cached. For example:

modelBuilder
    .Entity<Report>()
    .HasQueryFilter(x =>
        IsModerated != null
            ? !x.IsDeleted && IsModerated == x.IsModerated
            : !x.IsDeleted);

This works by capturing the closure variable IsModified from the context so that each time the query is evaluated it will take the current value of IsModified from the context.

[sergeushenecz]

@ajcvickers thanks, this is works