Tester plugin to show a backwards compatibility issue in SW 5.2 removeAttribute()

Bootstrap.php

<?php

final class Shopware_Plugins_Backend_AddRemoveAttributesTest_Bootstrap extends Shopware_Components_Plugin_Bootstrap
{
    public function getInfo()
    {
        return [
            'label' => 'Add/remove attributes test',
            'description' => 'No description'
        ];
    }

    public function getVersion()
    {
        return '0.1.0';
    }

    public function install()
    {
        return $this->update('install');
    }

    /**
     * @param string $oldVersion
     * @return boolean|array
     */
    public function update($oldVersion)
    {
        /** @var \Shopware\Components\Model\ModelManager $modelManager */
        $modelManager = $this->get('models');

        switch ($oldVersion) {
            case 'install':
                // Register onStartDispatch subscriber that bootstraps all dynamic subscribers
                $this->subscribeEvent(
                    'Enlight_Controller_Front_StartDispatch',
                    'onStartDispatch'
                );

                // Register console commands
                $this->subscribeEvent(
                    'Shopware_Console_Add_Command',
                    'onAddConsoleCommand'
                );

                // Create an attribute
                $modelManager->addAttribute(
                    's_order_details_attributes',
                    'viison',
                    'test',
                    'int(1)'
                );

                // Remove the attribute again
                $modelManager->removeAttribute(
                    's_order_details_attributes',
                    'viison',
                    'test'
                );

            case '0.1.0':
                // Next release

                // *** *** *** *** ***
                // NEVER REMOVE THE FOLLOWING BREAK! All updates must be added above this comment block!
                // *** *** *** *** ***
                break;
            default:
                return false;
        }

        return true;
    }

    public function afterInit()
    {
    }

    public function onStartDispatch(\Enlight_Event_EventArgs $args)
    {
    }

    public function onAddConsoleCommand(\Enlight_Event_EventArgs $args)
    {
        return [];
    }
}