{% if id_prefix+'_oid' in form_data %}
{% set selected_id = form_data[id_prefix+'_oid'] %}
{% elif data is not none and "object_id" in data %}
{% set selected_id = data.object_id | string %}
{% else %}
{% set selected_id = None %}
{% endif %}
{% if id_prefix+'_oid' in object_errors %}Error: {{ object_errors[id_prefix+'_oid'] }}{% endif %}