PropertyBag.php propMap errors

Overview

Using Stripe (not sure of other processors), email throws error in PropertyBag.php

Reproduction steps

1. Create event and checkout
2. When using email (and I assume other fields that have similar many-many relations), it will error out on checkout.
3. The reason is that in ``` protected static $propMap = [ ``` array is set to email.
4. It needs to be parsed different

Expected behaviour

It parses the email submitted and strips the -Primary etc.

Temp fix is note email-Primary pointing to email:

Comments

This is a fatal error and will also be an issue for address etc.

I thought about doing a regex like preg_replace('/email.*$/', 'email'... but that won't work with multiple keys. In my case that's not an issue, but may be for others.