Cannot use _path in Form URLs

[Eriknag]

Description

When you provide a Form URL with a _path as array option the Form still autofills plugin, controller and action.
This results in an Exception later on, when Router::unwrapShortString checks for unwanted array options.

The bug can be fixed by adding _path to the check in FormHelper::_formUrl. For example:

        if (
            is_string($options['url']) ||
            (
                is_array($options['url']) &&
                    (
                        isset($options['url']['_name']) ||
                        isset($options['url']['_path'])
                    )
            )
        ) {
            return $options['url'];
        }

CakePHP Version

5.x

PHP Version

No response