Options Per Line Setting Not Working for Participant Fields in Profile / Event Reg Forms

• • • IMPORTANT *** Once you fix this for "Participant" fields, please verify and fix if needed for Contact (Ind, HH, Org) and Contribution custom fields.

• Create a custom data group which extends Participant.
• Add 1 field to the group - Alphanumeric / Checkbox
• Add 2-3 options for the field
• Set "Options per line" = 1

When you Preview the custom field or custom group, the options per line setting is properly set:
http://demo.civicrm.org/drupal/civicrm/admin/custom/group/field?action=preview&reset=1&gid=2&id=3

However....

• Create a Profile (uf/group)
• Add your participant field to the profile
• Preview the profile

All 3 checkboxes are on the same line:
http://demo.civicrm.org/drupal/civicrm/admin/uf/group?action=preview&id=2&field=0

• Add this profile to an Event
• Test-drive event/register

All 3 checkboxes are on the same line:
https://demo.civicrm.org/drupal/civicrm/event/register?reset=1&action=preview&id=4