Add a delay to avoid race condition for generate script to new Azure db (#1629)

src/Microsoft.SqlTools.ServiceLayer/DacFx/GenerateDeployScriptOperation.cs

@@ -3,6 +3,7 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 using System.IO;
+using System.Threading;
 using Microsoft.SqlServer.Dac;
 using Microsoft.SqlTools.ServiceLayer.Connection;
 using Microsoft.SqlTools.ServiceLayer.DacFx.Contracts;
@@ -51,6 +52,9 @@ namespace Microsoft.SqlTools.ServiceLayer.DacFx
                 this.SqlTask.AddScript(SqlTaskStatus.Succeeded, Result.DatabaseScript);
                 if (!string.IsNullOrEmpty(this.Result.MasterDbScript))
                 {
+                    // Delay to avoid race condition to ensure both scripts get opened in ADS. Fix for https://github.com/microsoft/azuredatastudio/issues/20133
+                    Thread.Sleep(500);
+
                     // master script is only used if the target is Azure SQL db and the script contains all operations that must be done against the master database
                     this.SqlTask.AddScript(SqlTaskStatus.Succeeded, this.Result.MasterDbScript);
                 }