Required seems not to work.

I cannot get required validation style to get triggered. It seems that select 2 is getting class is-invalid when no option is selected but it shows no red border and no error message. Is there any option that I`ve missed ?

No files or tests are mentioned. Reproduce the required-validation case with the AutoForm select2 input and inspect how the invalid class, red border, and error message are rendered when no option is selected. Done means the required state visibly shows both the invalid styling and validation message.

Written by the indexing model from the issue text.