Drupal: Clone unreleased version of a module/theme from git using composer

composer.json

// Dowload form_mode_manager from git and using composer.
"repositories": [
        {
            "type": "composer",
            "url": "https://packages.drupal.org/8",
            "exclude": [
                "drupal/form_mode_manager"
            ]
        },
        {
            "type": "git",
            "url": "https://git.drupalcode.org/issue/form_mode_manager-3297262.git"
        },
  
  composer require "drupal/form_mode_manager:dev-3297262-automated-drupal-10#2c564b3b047dfc5002349c45ef6eec9aa98f8968"