An "s" is missing in a attribute data-list="#email-field-list"

[chiqui3d]

An "s" is missing in a attribute data-list="#email-field-list"
In this case, in order for it to work properly, it must have the same ID that it has in UL.

Collection template

https://symfony.com/doc/current/reference/forms/types/collection.html#prototype
https://prnt.sc/if8q7f

Thanks

[javiereguiluz]

Fixed by #9276.