User being invited by multiple users

[Piioupiou]

Hello,
I would like to be able to use devise_invitable to create a referral system.
Where multiple user can invite the same email, thus creating multiple token and email.
The invited could accept either one of them to create his account (He can only accept one invitation tho).
Is there a way to do it easily with devise invitable ?
Or do I have to create a new model between inviter and invited and handle it by hand ?
Have a nice day,
Piou

[Piioupiou]

My bad found it : #228