from odoo import api, SUPERUSER_ID

def migrate(cr, version):
    env = api.Environment(cr, SUPERUSER_ID, {})
    # Use SQL to bypass "Properties of base fields cannot be altered" ORM check
    cr.execute("""
        UPDATE ir_model_fields 
        SET website_form_blacklisted = false 
        WHERE model = 'helpdesk.ticket' AND name = 'attachment_ids'
    """)
    # Also for good measure, check if we need to do it for 'helpdesk.ticket' specifically?
    # The WHERE clause handles it.