TYPO3 Core

Hi! I'm not 100% sure if this is a bug or i did something wrong,
i created a custom finisher and it worked fine until i got reports that a lot of spam in happening,

after some research i noticed the honeypot isnt working at all,
after filling it by hand, it didn't do anything and the form got sent.

after some random fiddling around i came to the conclusion that if i remove module.tx_form from my typoscript setup of the finisher, the honeypot started working again.
i'm not sure if i wrongly interpreted the tx_form documentation and i shouldn't add module.tx_form in the first place or if this is a bug.

module.tx_form {
    settings {
        yamlConfigurations {
            100 = EXT:xxx/Configuration/Yaml/FormdataFinisher.yaml
        }
    }
}
plugin.tx_form {
    settings {
        yamlConfigurations {
            100 = EXT:xxx/Configuration/Yaml/FormdataFinisher.yaml
        }
    }
}

with that config, the honeypot isn't working.