Werk #11873: Fix exception caused by custom host attributes when saving host changes

Component WATO
Title Fix exception caused by custom host attributes when saving host changes
Date Jan 15, 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

When some kind of custom host attribute has been defined and is used in the host configuration, this may lead to an exception like this when editing or deleting hosts: Exception: AttributeError ('HostAttributeMYATTRIBUTEConcrete' object has no attribute 'is_explicit').

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