Werk #13820: Fix listing ruleset 500 error

Component	REST API
Title	Fix listing ruleset 500 error
Date	Mar 30, 2022
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.2.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

When listing rulesets through the REST API, a 500 Internal Server error could occur.

This is fixed with this Werk.

There are no further actions to be taken by the user.

To the list of all Werks