Werk #14992: Fix error on export of availabilty views

Component User interface
Title Fix error on export of availabilty views
Date Nov 11, 2022
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.1.0p17 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0p31 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Werk #14888 should have fixed the wrong color of down hosts in exported reports but broke the export of availability views.

An error like "AttributeError: 'list' object has no attribute 'split" was shown instead.

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