ReferencedTypeDoesNotMatch thrown on correct DataContract

**Describe the bug**
I have a WCF service that uses two DLLs with base types. Once we reference that base types, the data contract will throw the ReferencedTypeDoesNotMatch.

There must be a difference to older versions, where the Reference.cs has been written / even the referenced types are not used and therefore generated as duplicates.

The WSDL File is generated right before creating the service - so I assume that this is correct.

The strange thing this is, that this is only one service that is not working - other WSDL files in our project can be used without any hassle.

**To Reproduce**
Steps to reproduce the behavior:

1. I created a .NET Solution that produces the error with the current svc-util v8.0.0
2. You have to run the build.ps1 file
3. It crahes on CodeExporter.GetReferencedType

When serializing the object it throws a null reference exception

```
---> System.NullReferenceException: Object reference not set to an instance of an object.
at System.Runtime.Serialization.DataMember.CriticalHelper.get_MemberType() in C:\Github\wcf\src\dotnet-svcutil\lib\src\FrameworkFork\System.Runtime.Serialization\System\Runtime\Serialization\DataMember.cs:line 264
at System.Runtime.Serialization.DataMember.get_MemberType() in C:\Github\wcf\src\dotnet-svcutil\lib\src\FrameworkFork\System.Runtime.Serialization\System\Runtime\Serialization\DataMember.cs:line 142

```
**Fix**

The fix is to change to comparison in CodeExporter.GetReferencedType (Line 563)

from:` if (referencedContract.Equals(dataContract))`
to: `if (referencedContract.StableName.Equals(dataContract.StableName))`

**Expected behavior**
That the Reference.cs will be created with respect to the referenced data types.

**Screenshots**
If applicable, add screenshots to help explain your problem.


[Error_WSDL_DataContract.zip](https://github.com/user-attachments/files/19906870/Error_WSDL_DataContract.zip)