Similar to bug #018353, section_identifier is missing from the list of attribute keys for node_view_gui in kernel/common/eztemplateautoloads.php , though it does seem to be set in kernel/classes/eznodeviewfunctions.php

Tried adding it to kernel/common/eztemplateautoloads.php, but had no effect from my end; so am handing it over to those who have a better understanding of this.

Steps to reproduce

1. Create an override template
2. Create a new section with a section identifier and apply to a node
3. Create a setting in override.ini.append.php in a siteaccess which makes use of the section_identifier key match
4. Create an override template which makes use of the node_view_gui operator and pulls in the node you've applied the section to
5. Go to the node location in the front-end siteaccess on the website