Bug 23428: (bug 23151 follow-up) Fix self registration with a verification email

DBIx::Class::Row::store_column(): No such column 'changed_fields' on
Koha::Schema::Result::Borrower at /home/vagrant/kohaclone/Koha/Object.pm
line 75

Test plan:
- Turn PatronSelfRegistrationVerifyByEmail on
- Register a new account
- Click on the link (see the message_queue table)
=> Without this patch you get the error
=> With this patch you will see the login form

Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit c5f73575ab)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>

opac/opac-registration-verify.pl

@@ -64,6 +64,7 @@ if (
     $patron_attrs->{categorycode} ||= C4::Context->preference('PatronSelfRegistrationDefaultCategory');
     delete $patron_attrs->{timestamp};
     delete $patron_attrs->{verification_token};
+    delete $patron_attrs->{changed_fields};
     my $patron = Koha::Patron->new( $patron_attrs )->store;
 
     Koha::Patron::Consent->new({ borrowernumber => $patron->borrowernumber, type => 'GDPR_PROCESSING', given_on => $consent_dt })->store if $consent_dt;