InvalidOperationException with multiple HasDbFunction in 9 RC1

[rgroenewoudt]

File a bug

In EFCore 9 RC1 I'm getting a System.InvalidOperationException when my DbContext has multiple HasDbFunction calls.

In EF8 it works fine. If I limit it to 1 HasDbFunction(), it also works.

Include your code

Minimum reproducable project:
EFCore9Bug.zip

Include stack traces

System.InvalidOperationException
  HResult=0x80131509
  Message=Failed to compare two elements in the array.
  Source=System.Private.CoreLib
  StackTrace:
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource, Exception e)
   at System.Collections.Generic.ArraySortHelper`1.Sort(Span`1 keys, Comparison`1 comparer)
   at System.Linq.EnumerableSorter`2.QuickSort(Int32[] keys, Int32 lo, Int32 hi)
   at System.Linq.EnumerableSorter`1.Sort(TElement[] elements, Int32 count)
   at System.Linq.OrderedEnumerable`1.SortedMap(Buffer`1 buffer)
   at System.Linq.OrderedEnumerable`1.<GetEnumerator>d__19.MoveNext()
   at System.Linq.Enumerable.SelectIPartitionIterator`2.MoveNext()
   at Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.Create(IModel model, IRelationalAnnotationProvider relationalAnnotationProvider, IRelationalTypeMappingSource relationalTypeMappingSource, Boolean designTime)
   at Microsoft.EntityFrameworkCore.Infrastructure.RelationalModelRuntimeInitializer.<>c__DisplayClass4_0.<InitializeModel>b__0()
   at Microsoft.EntityFrameworkCore.RelationalModelExtensions.<>c.<GetRelationalModel>b__4_0(Func`1 f)
   at Microsoft.EntityFrameworkCore.Infrastructure.AnnotatableBase.<>c__30`2.<GetOrAddRuntimeAnnotationValue>b__30_0(String n, ValueTuple`3 t)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd[TArg](TKey key, Func`3 valueFactory, TArg factoryArgument)
   at Microsoft.EntityFrameworkCore.Infrastructure.AnnotatableBase.GetOrAddRuntimeAnnotationValue[TValue,TArg](String name, Func`2 valueFactory, TArg factoryArgument)
   at Microsoft.EntityFrameworkCore.RelationalModelExtensions.GetRelationalModel(IModel model)
   at Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseCreator.GetCreateTablesCommands(MigrationsSqlGenerationOptions options)
   at Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseCreator.CreateTables()
   at EFCore9Bug.Program.Main(String[] args) in C:\Users\robbieg\source\repos\EFCore9Bug\EFCore9Bug\Program.cs:line 20

  This exception was originally thrown at this call stack:
    System.Collections.Comparer.Compare(object, object)
    System.Collections.Generic.GenericComparer<T>.Compare(T, T)
    System.Linq.EnumerableSorter<TElement, TKey>.CompareAnyKeys_DefaultComparer_NoNext_Ascending(int, int)
    System.Collections.Generic.ArraySortHelper<T>.SwapIfGreater(System.Span<T>, System.Comparison<T>, int, int)
    System.Collections.Generic.ArraySortHelper<T>.IntroSort(System.Span<T>, int, System.Comparison<T>)
    System.Collections.Generic.ArraySortHelper<T>.IntrospectiveSort(System.Span<T>, System.Comparison<T>)
    System.Collections.Generic.ArraySortHelper<T>.Sort(System.Span<T>, System.Comparison<T>)

Inner Exception 1:
ArgumentException: At least one object must implement IComparable.

Include provider and version information

EF Core version: 9 RC1
Database provider: Microsoft.EntityFrameworkCore.SqlServer
Target framework: .NET 8.0

[rgroenewoudt]

The issue might be related to duplicate naming with HasName()