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Form Destination for Multiple Dropdown not working #1253

Description

@JaakGeld

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Is there an existing issue for this?

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GLPI Version

GLPI 11.0.8

Plugin version

1.24.4

Bug description

Hi

Field Block = Tickets

1st 'Fields'
Label: Systems Affected
Type: Dropdown
Multiple Dropdown: Yes

2nd 'Fields'
Label: Business Unit Impact
Type: Dropdown
Multiple Dropdown: No

Referencing both these fields in a form, when submiting the form to create the ticket, only the 2nd Field with 'Multiple Dropdown - No' has populated to the ticket main form, the 'Multiple Dropdown: Yes' is not populated.

Relevant log output

Log are clean

Page URL

No response

Steps To reproduce

Hi

Field Block = Tickets

1st 'Fields'
Label: Systems Affected
Type: Dropdown
Multiple Dropdown: Yes

2nd 'Fields'
Label: Business Unit Impact
Type: Dropdown
Multiple Dropdown: No

Referencing both these fields in a form, when submiting the form to create the ticket, only the 2nd Field with 'Multiple Dropdown - No' has populated to the ticket main form, the 'Multiple Dropdown: Yes' is not populated.

Your GLPI setup information

GLPI information
GLPI: 11.0.8 ( => /var/www/glpi)
Installation mode: DOCKER
Current language: en_GB
Source Integrity: OK
Server
Operating system: Linux 596ddeb8e8f3 6.8.0-124-generic #​124-Ubuntu SMP PREEMPT_DYNAMIC Tue May 26 13:00:45 UTC 2026 x86_64

PHP: 8.5.9 apache2handler

PHP extensions: Core, date, lexbor, openssl, pcre, sqlite3, zlib, ctype, curl, uri, json, fileinfo, filter, hash, iconv, SPL, mbstring, Zend OPcache, session, standard, PDO, pdo_sqlite, bz2, posix, random, Reflection, libxml, SimpleXML, tokenizer, dom, xml, xmlreader, xmlwriter, mysqlnd, apache2handler, apcu, bcmath, Phar, exif, gd, intl, ldap, mysqli, redis, soap, sodium, zip

Setup: disable_functions="" max_execution_time="30" max_input_vars="1000" memory_limit="128M" post_max_size="8M" session.cookie_secure="0" session.cookie_httponly="1" session.cookie_samesite="Strict" session.save_handler="files" upload_max_filesize="2M"

Web server: Apache ()

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36

Database:

Server Software: mariadb.org binary distribution

Server Version: 10.11.18-MariaDB-ubu2204

Server SQL Mode: STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

Parameters: glpi_user@glpi-db:3306/glpizone

Host info: glpi-db via TCP/IP

Requirements:
PHP version (8.5.9) is supported.
OS and PHP are relying on 64 bits integers.
Sessions configuration is OK.
Allocated memory is sufficient.
Following extensions are installed: dom, fileinfo, filter, libxml, simplexml, tokenizer, xmlreader, xmlwriter.
mysqli extension is installed
curl extension is installed
gd extension is installed
intl extension is installed
mbstring extension is installed
zlib extension is installed
bcmath extension is installed
The constant SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES is present.
openssl extension is installed
Database engine version (10.11.18) is supported.
The log file has been created successfully.
Write access to /var/glpi/files/_cache has been validated.
Write access to /var/glpi/files/_cron has been validated.
Write access to /var/glpi/files has been validated.
Write access to /var/glpi/files/_graphs has been validated.
Write access to /var/glpi/files/_lock has been validated.
Write access to /var/glpi/files/_pictures has been validated.
Write access to /var/glpi/files/_plugins has been validated.
Write access to /var/glpi/files/_rss has been validated.
Write access to /var/glpi/files/_sessions has been validated.
Write access to /var/glpi/files/_tmp has been validated.
Write access to /var/glpi/files/_uploads has been validated.

Sessions configuration is secured.
exif extension is installed
ldap extension is installed
Following extensions are installed: bz2, Phar, zip.
Zend OPcache extension is installed
Following extensions are installed: ctype, iconv, sodium.
Write access to /var/glpi/marketplace has been validated.
Timezones seems loaded in database.

GLPI constants

GLPI_ROOT: "/var/www/glpi"
GLPI_VERSION: "11.0.8"
GLPI_SCHEMA_VERSION: "11.0.8@7b129479687ebafebb6966eaa1d72cb683390613"
GLPI_FILES_VERSION: "11.0.8-6c9b5a05"
GLPI_MIN_PHP: "8.2"
GLPI_MAX_PHP: "8.5"
GLPI_YEAR: "2026"
GLPI_I18N_DIR: "/var/www/glpi/locales"
GLPI_CONFIG_DIR: "/var/glpi/config"
GLPI_VAR_DIR: "/var/glpi/files"
GLPI_MARKETPLACE_DIR: "/var/glpi/marketplace"
GLPI_LOG_DIR: "/var/glpi/logs"
GLPI_INSTALL_MODE: "DOCKER"
GLPI_ENVIRONMENT_TYPE: "production"
GLPI_ALLOW_IFRAME_IN_RICH_TEXT: false
GLPI_SERVERSIDE_URL_ALLOWLIST: ["^\n (http|https|feed):// # protocol\n (\n (?:\n (?:xn--[a-z0-9-]++\.)*+xn--[a-z0-9-]++ # a domain name using punycode\n |\n (?:[\pL\pN\pS\pM\-\]++\.)+[\pL\pN\pM]++ # a multi-level domain name\n |\n [a-z0-9\-\]++ # a single-level domain name\n )\.?\n | # or\n \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3} # an IP address\n | # or\n \[\n (?:(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){6})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:::(?:(?:(?:[0-9a-f]{1,4})):){5})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){4})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,1}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){3})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,2}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){2})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,3}(?:(?:[0-9a-f]{1,4})))?::(?:(?:[0-9a-f]{1,4})):)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,4}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,5}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,6}(?:(?:[0-9a-f]{1,4})))?::))))\n \] # an IPv6 address\n )\n (?:/ (?:[\pL\pN\pS\pM\-._\!$&'()+,;=:@]|%[0-9A-Fa-f]{2}) )* # a path\n (?:\? (?:[\pL\pN\-._\~!$&'\\+,;=:@/?]|%[0-9A-Fa-f]{2}) )? # a query (optional)\n $~ixuD"]
GLPI_DISALLOWED_UPLOADS_PATTERN: "/\.(php\d*|phar)$/i"
GLPI_TELEMETRY_URI: "https://telemetry.glpi-project.org"
GLPI_NETWORK_MAIL: "glpi@teclib.com"
GLPI_NETWORK_SERVICES: "https://services.glpi-network.com"
GLPI_MARKETPLACE_ENABLE: 3
GLPI_MARKETPLACE_PRERELEASES: false
GLPI_MARKETPLACE_ALLOW_OVERRIDE: true
GLPI_MARKETPLACE_MANUAL_DOWNLOADS: true
GLPI_USER_AGENT_EXTRA_COMMENTS: ""
GLPI_DOCUMENTATION_ROOT_URL: "https://links.glpi-project.org"
GLPI_DISABLE_ONLY_FULL_GROUP_BY_SQL_MODE: "1"
GLPI_LOG_LVL: "warning"
GLPI_SKIP_UPDATES: false
GLPI_STRICT_ENV: false
GLPI_AJAX_DASHBOARD: "1"
GLPI_CALDAV_IMPORT_STATE: 0
GLPI_CENTRAL_WARNINGS: "1"
GLPI_SYSTEM_CRON: false
GLPI_TEXT_MAXSIZE: "4000"
GLPI_WEBHOOK_ALLOW_RESPONSE_SAVING: "0"
GLPI_WEBHOOK_CRA_MANDATORY: false
GLPI_ALTCHA_MODE: "interactive"
GLPI_ALTCHA_MAX_NUMBER: 50000
GLPI_ALTCHA_EXPIRATION_INTERVAL: "PT20M"
GLPI_DOC_DIR: "/var/glpi/files"
GLPI_CACHE_DIR: "/var/glpi/files/_cache"
GLPI_CRON_DIR: "/var/glpi/files/_cron"
GLPI_GRAPH_DIR: "/var/glpi/files/_graphs"
GLPI_LOCAL_I18N_DIR: "/var/glpi/files/_locales"
GLPI_LOCK_DIR: "/var/glpi/files/_lock"
GLPI_PICTURE_DIR: "/var/glpi/files/_pictures"
GLPI_PLUGIN_DOC_DIR: "/var/glpi/files/_plugins"
GLPI_RSS_DIR: "/var/glpi/files/_rss"
GLPI_SESSION_DIR: "/var/glpi/files/_sessions"
GLPI_TMP_DIR: "/var/glpi/files/_tmp"
GLPI_UPLOAD_DIR: "/var/glpi/files/_uploads"
GLPI_INVENTORY_DIR: "/var/glpi/files/_inventories"
GLPI_THEMES_DIR: "/var/glpi/files/_themes"
GLPI_PLUGINS_DIRECTORIES: ["/var/glpi/marketplace","/var/www/glpi/plugins"]
GLPI_NETWORK_API_URL: "https://services.glpi-network.com/api"
GLPI_NETWORK_REGISTRATION_API_URL: "https://services.glpi-network.com/api/registration/"
GLPI_MARKETPLACE_PLUGINS_API_URI: "https://services.glpi-network.com/api/marketplace/"
SQL replicas

Not active
Notifications

Way of sending emails: PHP
Plugins list

fields Name: Fields Version: 1.24.4 State: Enabled Install Method: Marketplace

Anything else?

No response

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