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Werk #13656: Fix already used error using host and service label conditions

Component Setup
Title Fix already used error using host and service label conditions
Date Jan 14, 2022
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.1.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0p19 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

If you used label conditions in rules and the same key was used for host and service labels, the error "Only one value per KEY can be used at a time.foo:bar is already used." ocurred. From now on, each label type will be validated seperatly.

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