Fallback and rules does not works in case of dynamic form implementation if form is active

[kaustuk]

Rasa version: 2.1.3

Rasa SDK version (if used & relevant): 2.1.2

Rasa X version (if used & relevant): 0.34.0

Python version: 3.7.9

Operating system (windows, osx, ...): Darwin-19.6.0-x86_64-i386-64bit

Issue:

So basically the issue is if we have Fallback and rules for some intent in bot and we have implemented the a dynamic form (i.e overwrite required_slots method and adding some required slot base on some condition met) in this case if the fallback/rules is triggered when form is active then this rules and fallback action/utterance will not be triggered.
P.S: Also attaching the tar of the bot which can help in reproduce it rasa_init_bot.tar.gz

Step to reproduce the error:

1. Download above tar in local
2. Run rasa train
3. Wait for model is trained. After model is trained we will explore 2 cases

Case 1: Fail case if dynamic form is implemented

1. Bring rasa action server: rasa run actions
2. Bring rasa shell: rasa shell
3. Interact with bot as follow screenshot:

4. Here the action action_test_1 is not being triggered

Case 2: Normal case without dynamic form implemented

1. comment the required_slots function in actions/actions.py file
2. Bring rasa action server up again: rasa run actions
3. Bring rasa shell: rasa shell
4. Interact with bot as follow screenshot:

5. Here the action action_test_1 being triggered

[kaustuk]

I would like to work on this. I have figured out the solution for this and where is it failing. we can discuss it. Once bug is confirmed

[sara-tagger]

Thanks for raising this issue, @kalkbrennerei will get back to you about it soon✨

Please also check out the docs and the forum in case your issue was raised there too 🤗

[nbeuchat]

@kaustuk We have the same issue and I have opened a bug report on Rasa SDK: RasaHQ/rasa-sdk#370
@wochinge is already on it 💪 🚀

[wochinge]

Thanks for bringing this up @kaustuk . Both issues seem to be the same thing 👍🏻 Will fix it via #7564