Including an inherited navigation throws IndexOutOfRangeException

[AndriySvyryd]

See #6571 for full repro

var character = context.Characters
    .Include(c => c.Level.Game)
    .First();

System.IndexOutOfRangeException : Index was outside the bounds of the array.
    ChangeTracking\Internal\StateData.cs(73,0): at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.InternalEntityEntry.StateData.FlagProperty(Int32 propertyIndex, PropertyFlag propertyFlag, Boolean isFlagged)
    ChangeTracking\Internal\InternalEntityEntry.cs(1034,0): at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.InternalEntityEntry.SetIsLoaded(INavigation navigation, Boolean loaded)
    Query\Internal\EntityTrackingInfo.cs(218,0): at Microsoft.EntityFrameworkCore.Query.Internal.EntityTrackingInfo.<GetIncludedEntities>d__17.MoveNext()
    at System.Linq.Enumerable.<SelectManyIterator>d__16`2.MoveNext()
    at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
    Query\Internal\QueryBuffer.cs(140,0): at Microsoft.EntityFrameworkCore.Query.Internal.QueryBuffer.StartTracking(Object entity, EntityTrackingInfo entityTrackingInfo)
    Query\QueryContext.cs(136,0): at Microsoft.EntityFrameworkCore.Query.QueryContext.StartTracking(Object entity, EntityTrackingInfo entityTrackingInfo)
    Query\Internal\LinqOperatorProvider.cs(191,0): at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.<_TrackEntities>d__15`2.MoveNext()
    Query\Internal\LinqOperatorProvider.cs(145,0): at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext()
    at System.Linq.Enumerable.First[TSource](IEnumerable`1 source)
    Query\Internal\QueryCompiler.cs(200,0): at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass19_1`1.<CompileQuery>b__1(QueryContext qc)
    Query\Internal\QueryCompiler.cs(98,0): at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.Execute[TResult](Expression query)
    Query\Internal\EntityQueryProvider.cs(57,0): at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.Execute[TResult](Expression expression)
    at System.Linq.Queryable.First[TSource](IQueryable`1 source)
    SqlServerEndToEndTest.cs(420,0): at Microsoft.EntityFrameworkCore.SqlServer.FunctionalTests.SqlServerEndToEndTest.Can_track_an_entity_with_more_than_10_properties()