Connect-DbaInstance: Fix for issue when changing database context (#9505)

Author: andreasjordan

public/Connect-DbaInstance.ps1

@@ -639,10 +639,13 @@ function Connect-DbaInstance {
                     if ($Database) {
                         # Save StatementTimeout because it might be reset on GetDatabaseConnection
                         $savedStatementTimeout = $connContext.StatementTimeout
-                        $connContext = $connContext.GetDatabaseConnection($Database)
+                        $connContext = $connContext.GetDatabaseConnection($Database, $false)
                         $connContext.StatementTimeout = $savedStatementTimeout
                     }
                     $server = New-Object -TypeName Microsoft.SqlServer.Management.Smo.Server -ArgumentList $connContext
+                    if ($Database -and $server.ConnectionContext.CurrentDatabase -ne $Database) {
+                        Write-Message -Level Warning -Message "Changing connection context to database $Database was not successful. Current database is $($server.ConnectionContext.CurrentDatabase). Please open an issue on https://github.com/dataplat/dbatools/issues."
+                    }
                 } else {
                     $server = $inputObject
                 }

tests/Connect-DbaInstance.Tests.ps1

@@ -206,6 +206,13 @@ Describe "$commandname Integration Tests" -Tags "IntegrationTests" {
             $serverClone.ConnectionContext.ServerInstance | Should -Match '^ADMIN:'
             $serverClone | Disconnect-DbaInstance
         }
+
+        It "clones when using Backup-DabInstace" {
+            $server = Connect-DbaInstance -SqlInstance $script:instance1 -Database tempdb
+            $null = Backup-DbaDatabase -SqlInstance $server -Database msdb
+            $null = Backup-DbaDatabase -SqlInstance $server -Database msdb -WarningVariable warn
+            $warn | Should -BeNullOrEmpty
+        }
     }
 
     Context "multiple connections are properly made using strings" {