Werk #11928: Crash: When service goes Crit or Warn but the respective level is not defined (None)

Component	Checks & Agents
Title	Crash: When service goes Crit or Warn but the respective level is not defined (None)
Date	Jan 14, 2021
Checkmk Editon	Checkmk Raw (CRE)
Checkmk Version	2.1.0i1 2.0.0b5
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed

If the upper levels for a service are defined for example as (None, 50.0) and the service goes {CRIT} the service would crash because it cannot display None. This would only occur for legacy check plugins.

Now the string "never" is diplayed instead of the respective value.

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