Early access to $CFG->branch in core_plugin_manager::instance()->all_plugins_ok

(difficulty: easy, requires the ability to install the Moodle database using the CLI comand)

Prepare the test environment

1. You can use the Moodle Docker Toolbox, by selecting any DB - the fastest in your setup:

   # export MOODLE_DOCKER_WWWROOT=/path/to/moodle/branch

   # export MOODLE_DOCKER_DB=mysql

Before applying the fix

1. Start the environment:

   # bin/moodle-docker-compose up -d

2. Install the database using the Moodle CLI; a notice will be printed:

   # bin/moodle-docker-compose exec webserver php admin/cli/install_database.php --agree-license --fullname="Docker moodle" --shortname="docker_moodle" --adminpass="test" --adminemail="admin@example.com"

   Notice: Undefined property: stdClass::$branch in /var/www/html/lib/classes/plugin_manager.php on line 755

   -------------------------------------------------------------------------------

   == Setting up database ==

   -->System

   ++ Success ++

   [...]

   -->logstore_standard

   ++ Success ++

   Installation completed successfully.

3. Stop the environment, trashing it:

   # bin/moodle-docker-compose down -v

After applying the fix

1. Start the environment:

   # bin/moodle-docker-compose up -d

2. Install the database using the Moodle CLI; no notice will be printed:

   # bin/moodle-docker-compose exec webserver php admin/cli/install_database.php --agree-license --fullname="Docker moodle" --shortname="docker_moodle" --adminpass="test" --adminemail="admin@example.com"

   -------------------------------------------------------------------------------

   == Setting up database ==

   -->System

   ++ Success ++

   [...]

   -->logstore_standard

   ++ Success ++

   Installation completed successfully.

3. Stop the environment, trashing it:

   # bin/moodle-docker-compose down -v