currently the email address must be unique for every registration in a registration form. I can think of many cases where this is reasonable. However, there are also cases where it should be possible to register multiple registrants over the same email address:
We recently had the case to host an event for several business executives. These people typically don’t like to hand out their personal address and like to use a general purpose email address (e.g. firstname.lastname@example.org). Now, if more than one person in the company uses this problem we run into problems. Another case would be that a team assistance is given the task to register several managers without using their personal mail. The assistance would like to use his/her address.
A way to solve this is to add a setting in the registration form to “allow multiple registrations from the same email address” and remove the constraint from the respective database table. I don’t see the point of being this restrictive there (given that we are just talking about registrations with no indico-account).
What do you think? Would you support such a PR?