Unsupported oprand
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #219045. -->
Reported by: [bwynants](https://www.drupal.org/user/17123)
>>>
<pre>$node->og_groups += (array)$node->og_groups_inaccessible;</pre><p>gives Unsupported oprand</p>
<p>replaced with </p>
<pre> $node->og_groups = array_merge($node->og_groups, (array)$node->og_groups_inaccessible);</pre>
issue