onDidChangeActiveTerminal skips first terminal

[jrieken]

re #52834

• have snippet like below
• open 3 terminals via +, see three events
• close/kill all terminals with the trash can
• reopen terminal via ctrl+`
• 🐛 no event for the first terminal but events for subsequent terminals

'use strict';

import * as vscode from 'vscode';

export function activate (context: vscode.ExtensionContext) {

    function checkActiveTerminal () {
        let { activeTerminal } = vscode.window;
        console.log('activeTerminal: ' + (activeTerminal ? activeTerminal.name : '<none>'));
    }

    checkActiveTerminal();
    vscode.window.onDidChangeActiveTerminal(checkActiveTerminal);

    vscode.commands.registerCommand('extension.sayHello', async () => {
        //
    });
}

[jrieken]