Werk #16815: Missing piggybacked hosts

Component	Checks & agents
Title	Missing piggybacked hosts
Date	May 10, 2024
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.4.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.3.0p2 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

This fixes a regression in Checkmk 2.3.0 and 2.3.0p1. Piggybacked hosts containing invalid characters where dropped silently. This restores the original behavior: Invalid characters in host names are replaced by "_".

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