Problem

I was trying to upgrade 1.15.14 to 2.1.1 (php-flasher/flasher-symfony ; php-flasher/flasher-sweetalert) and I've found a breaking change regarding Symfony config. Previously, root_script was nullable but now it has been refactored to main_script and by which also the signature has changed to be no longer be nullable.

1.15.14

https://github.com/php-flasher/php-flasher/blame/c06624768dc760dce4a75f74db10c7a24bcaa409/src/Prime/Response/Resource/ResourceManager.php#L57

2.1.1

This now causes issues as root_script: ~ (now main_script: ~) no longer works. My setup has the Javascripts assets @flasher/flasher and @flasher/flasher-sweetalert installed separately with NPM so it can be easily used with Webpack Encore instead of PHP flasher injecting remote/local assets in the head.

Is there a possibility to make this nullable again?