Document Store only displays latest subdirectory

ISSUE TYPE

Bug Report

VERSION

define( 'APPLICATION_VERSION', '5.4.0' );
define( 'APPLICATION_VERDATE', '2020022900' );

ENVIRONMENT

root@beta:/srv/ixpmanager# php -v
PHP 7.3.14-1+ubuntu16.04.1+deb.sury.org+1 (cli) (built: Jan 23 2020 13:58:58) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.14, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.14-1+ubuntu16.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies

CONFIGURATION

APP_ENV=production
APP_DEBUG=false
APP_URL="https://portal....."
APP_TIMEZONE="Europe/London"
APP_LOG="single"
APP_LOG_LEVEL=debug
IXP_FE_FRONTEND_DISABLED_LOGO=false
IXP_FE_CUSTOMER_BILLING_UPDATES_NOTIFY="accounts@....net"
IXP_FE_FRONTEND_DISABLED_RS_PREFIXES=true
IXP_FE_FRONTEND_DISABLED_NETINFO=true
IXP_FE_FRONTEND_DISABLED_CUSTKIT=false
IXP_FE_FRONTEND_DISABLED_CONSOLE=true
IXP_FE_FRONTEND_DISABLED_LOGO=false
IXP_FE_FRONTEND_DISABLED_LOOKING_GLASS=false
IXP_FE_VLANINTERFACES_HOSTNAME_REQUIRED=false
IXP_API_JSONEXPORTSCHEMA_PUBLIC=true
IXP_MULTIIXP_ENABLED=false
IXP_RESELLER_ENABLED=true
IXP_RESELLER_RESOLD_BILLING=false
IXP_AS112_UI_ACTIVE=false
GRAPHER_BACKENDS="mrtg|sflow"
GRAPHER_BACKEND_MRTG_WORKDIR="/srv/mrtg"
GRAPHER_BACKEND_MRTG_LOGDIR="/srv/mrtg"
GRAPHER_BACKEND_SFLOW_ENABLED=true
GRAPHER_BACKEND_SFLOW_ROOT="http://..."
GRAPHER_BACKEND_SMOKEPING_ENABLED=false
GRAPHER_CACHE_ENABLED=false
VIEW_SKIN="lonap"
VIEW_SMARTY_SKIN="lonap"
AUTH_ZF1_PWHASH="bcrypt"
CACHE_DRIVER=memcached
SESSION_DRIVER=file
DOCTRINE_PROXY_AUTOGENERATE=false
DOCTRINE_CACHE=array
DOCTRINE_CACHE_NAMESPACE=IXPMANAGERNAMESPACE
IXP_API_RIR_EMAIL_TO=auto-dbm@....
IXP_API_RIR_EMAIL_FROM=ixp-auto@....
IXP_IRRDB_BGPQ3_PATH=/usr/local/bin/bgpq3
IXP_IRRDB_MIN_V4_SUBNET_SIZE=24
IXP_IRRDB_MIN_V6_SUBNET_SIZE=48
IXP_FE_FRONTEND_DISABLED_FILTERED_PREFIXES=false
IXP_RPKI_RTR1_HOST=5.57.....
IXP_RPKI_RTR1_PORT=3323
IXP_RPKI_RTR2_HOST=5.57.....

SUMMARY

Document store only displays latest sub-directory.

STEPS TO REPRODUCE

Create a directory in Document Store e.g.:

Annual General Meeting

Then, under this directory, create some more subdirectories, e.g, create them in this order:-

2019
2018
2017

EXPECTED RESULTS

In the "Annual General Meeting" directory, it should list all subdirectories.

ACTUAL RESULTS

Only the most recent subdirectory is listed e.g.:

2017

When deleting 2017, 2018 appears again.

This only seems to occur in subdirectories created under existing directories. The root directory seems to work as expected.

I made a short screencast showing the problem here:-

https://www.youtube.com/watch?v=xJkh8qQe1Eo

inex / IXP-Manager