2.0.1-beta1 does not allow for context update to 5.0.0-rc1

Obviously an extremely simple MR :) I have no idea yet if there are incompatibilities between context_breadcrumb 2.0.1 and context 5.0.0-rc1

To be able to upgrade both modules, I added the the following changes to my composer.json:

    "repositories": [
        {
            "type": "composer",
            "url": "https://packages.drupal.org/8",
            "exclude": [
                "drupal/context_breadcrumb"
            ]
        },
        {
            "type": "package",
            "package": {
                "name": "drupal/context_breadcrumb",
                "version": "2.0.1@dev",
                "type": "drupal-module",
                "source": {
                    "url": "https://git.drupalcode.org/issue/context_breadcrumb-3369056.git",
                    "type": "git",
                    "reference": "2.0.x"
                }
            }
        }
    ],

Then I ran:
composer require 'drupal/context:^5.0@RC' 'drupal/context_breadcrumb:^2.0@beta'