Syslog decorated mapper target not present in fields drop-down menu

[hydrapolic]

Expected Behavior

Add a dashboard where a syslog severity mapper is used for a message table. The target field should be in the FIELDS with other fields (like timestamp, source...).

Current Behavior

The mapped field (severity in my case) is not in the list (when clicked on Add a field).

Possible Solution

Steps to Reproduce (for bugs)

1. Create a new dashboard.
2. Create message table, edit, decorators syslog severity mapper: source field: level target field: severity
3. Severity is not in the list of FIELDS

Context

Your Environment

• Graylog Version: 5.2.7
• Java Version: 17
• OpenSearch Version: 2.14
• MongoDB Version: 7.0.9
• Operating System: Linux Gentoo
• Browser version: Chromium 125

[hydrapolic]

A workaround is to click on a random message in the table, expand, click on the field and select "Add to table".