Rasa: add description for the default behaviour of `slot_mappings` to docs

[wochinge]

If extending the FormAction one should overwrite the function slot_mappings. If this is not done, the action server should give a warning

[Ghostvv]

empty slot_mapping means the slots are populated with entities with corresponding names

[wochinge]

Ah :+1: Should we maybe document that somewhere? Cause this behavior was kind of unexpected for me.

[Ghostvv]

please add this to the docs. This is caused by this method: https://github.com/RasaHQ/rasa_core_sdk/blob/74f9fef9d5ce68ae8873fe66cd27e5c073366255/rasa_core_sdk/forms.py#L116

[stale[bot]]

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[akelad]

@wochinge is this still relevant?

[wochinge]

yes, but we should maybe move that to the nlu repository since the docs are there

[akelad]

am i blind or has the transfer feature from github been removed

[Ghostvv]

this is sdk repo 😅

[wochinge]

Guess Zenhub is not activated for this repo. Well, it's also ok here as long it's in the sprint board

[akelad]

hm? the transfer feature used to exist from github, no need for zenhub, but maybe they disabled it again 🤷‍♀️

[erohmensing]

@wochinge I updated this when rewriting form docs -- clear enough to close? https://rasa.com/docs/rasa/core/forms/#custom-slot-mappings

[wochinge]

Thanks for thinking of this, Ella!