Clear account tokens before refresh (#18452)

* clear account tokens on refresh

* update refresh button after refresh

extensions/azurecore/src/account-provider/azureAccountProvider.ts

@@ -172,6 +172,11 @@ export class AzureAccountProvider implements azdata.AccountProvider, vscode.Disp
 	}
 
 	refresh(account: AzureAccount): Thenable<AzureAccount | azdata.PromptFailedResult> {
+		return this._refresh(account);
+	}
+
+	private async _refresh(account: AzureAccount): Promise<AzureAccount | azdata.PromptFailedResult> {
+		await this._clear(account.key);
 		return this.prompt();
 	}
 

src/sql/workbench/services/connection/browser/connectionWidget.ts

@@ -418,6 +418,7 @@ export class ConnectionWidget extends lifecycle.Disposable {
 				if (account) {
 					await this._accountManagementService.refreshAccount(account);
 					await this.fillInAzureAccountOptions();
+					this.updateRefreshCredentialsLink();
 				}
 			}));
 		}