Fix issue where dropdown buttons for launching project host pointed t…

…o stale projects (#2930)

Co-authored-by: Aditya Rastogi <[email protected]>

tools/SetupFlow/DevHome.SetupFlow/ViewModels/QuickstartPlaygroundViewModel.cs

@@ -434,10 +434,17 @@ public async Task GenerateCodespace()
 
             TelemetryFactory.Get<ITelemetry>().Log("QuickstartPlaygroundGenerateButtonClicked", LogLevel.Critical, new GenerateButtonClicked(userPrompt));
 
-            // Ensure file view isn't visible (in the case where the user has previously run a Generate command
+            // Ensure file view isn't visible (in the case where the user has previously run a Generate command)
             IsFileViewVisible = false;
             IsErrorViewVisible = false;
 
+            // Ensure that the launch buttons are in their default state. This is important for scenarios where
+            // the extension has more than one project host and the user is doing multiple generate attempts in sequence.
+            // It makes sure that the code in the code-behind for populating the dropdown button gets re-run to pick up
+            // the new project host objects.
+            IsLaunchButtonVisible = true;
+            IsLaunchDropDownVisible = false;
+
             // Without this, when the user generates two projects in sequence, the text box
             // will contain any text from last-opened file in the previous project (which is
             // confusing as this project may not have anything to do with the current one). This