Profile confirmation page shows the wrong values for multi-value custom data

When you submit a profile that uses multi-value custom fields, the confirmation page shows the wrong data. So does the notification email. It shows the very first entry in the custom field multi-value data, rather than the most recent one. The same happens for notification emails.

(tested on WP sandbox) 1. Create a custom field set that allows multiple records (for an Individual, say) 2. Create a field in this set 3. Create a new contact record with test@test.com 4. On this contact record, populate the custom field with an initial entry. Enter 'first data' or similar. 5. Create a profile with a) an email address field b) this custom field 6. Set the profile settings to 'update the matching contact' 7. Go to the profile list on Civi, click 'more' and go to 'Use - Create mode' 8. Enter ' test@test.com ' and 'second data', and submit the form 9. The confirmation page shows 'first data'.

1. Create a custom field set that allows multiple records (for an Individual, say) 2. Create a field in this set 3. Create a new contact record with test@test.com 4. On this contact record, populate the custom field with an initial entry. Enter 'first data' or similar. 5. Create a profile with a) an email address field b) this custom field 6. Set the profile settings to 'update the matching contact' 7. Go to the profile list on Civi, click 'more' and go to 'Use - Create mode' 8. Enter ' test@test.com ' and 'second data', and submit the form 9. The confirmation page shows 'second data'.