From 6d60457ad9262e98229ee27a4f2d2b95ae58d73b Mon Sep 17 00:00:00 2001
From: Oleg Milantiev <oleg@milantiev.com>
Date: Thu, 2 Aug 2018 10:39:42 +0300
Subject: [PATCH] Got crash on SF3.4, fix it

---
 Resources/views/Form/typeahead.html.twig | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Resources/views/Form/typeahead.html.twig b/Resources/views/Form/typeahead.html.twig
index 0523927..f5636a4 100644
--- a/Resources/views/Form/typeahead.html.twig
+++ b/Resources/views/Form/typeahead.html.twig
@@ -59,7 +59,11 @@
     {% if simple %}
         {% set _id, _value, _render = child, child, child %}
     {% else %}
-        {% set _id, _value, _render = child.id, attribute(child, property ?: 'id'), attribute(child, render) %}
+        {% if child is null %}
+            {% set _id, _value, _render = null, null, null %}
+        {% else %}
+            {% set _id, _value, _render = child.id, attribute(child, property ?: 'id'), attribute(child, render) %}
+        {% endif %}
     {% endif %}
     <li{% if child is not null %} data-value="{{ _id }}"{% endif %}>
         <input{% if child is not null %} id="{{ id ~ '_' ~ _id }}" name="{{ full_name }}[]" value="{{ _value }}"{% endif %} type="hidden" />