Named Entity Recognition: "Save" button is still disabled after changing "Sentence" column to "Label" and changing "Label" column to "Sentence" purpose on the "Advanced data options" dialog.

**System Information (please complete the following information):**
Windows OS: Windows-11-Enterprise-22H2
ML.Net Model Builder 2022: 17.18.2.2415501 (Main Build)
Microsoft Visual Studio Enterprise: 2022(17.8.5)
.Net Core: 6.0,7.0,8.0

**Describe the bug**
- On which step of the process did you run into an issue:
"Save" button is still disabled after changing "Sentence" column to "Label" and changing "Label" column to "Sentence" purpose on the "Advanced data options" dialog.

**TestMatrix**
https://github.com/dotnet/machinelearning-modelbuilder/files/14342564/NERTestdata.zip

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

1. Select Create a new project from the Visual Studio start window.
2. Choose the C# Console App (.NET Core) project template.
3. Add model builder by right click on the project.
4. Select "Named Entity Recognition" scenario.
5. On the Data page, choose the data source and go to "Advanced data options" dialog.
6. Change the "Sentence" column to "Label" and change the "Label" column to "Sentence" purpose.
7. You will see the "Save" button is still disabled.

**Expected behavior**
"Save" button should be enabled after changing "Sentence" column to "Label" and changing "Label" column to "Sentence" purpose.

**Screenshot:**

**Additional context:**

Beginne damit, das Problem im Dialog Advanced data options mit der im Bericht verlinkten Testmatrix NERTestdata.zip zu reproduzieren. Verfolge den Einstiegspunkt für Validierung oder Änderungserkennung beim Austauschen der Zwecke Sentence und Label. Überprüfe anschließend, dass Save nach dem Austausch aktiviert wird und der Dialog weiterhin die ursprüngliche Konfiguration verarbeitet.

Vom Indexierungsmodell aus dem Issue-Text verfasst.