Checkmk Werk 12495: Fix Graphs when active check ICMP inspects a host with multiple addresses

ID: 12495 Title: Fix Graphs when active check ICMP inspects a host with multiple addresses Component: metrics Level: 1 Class: Bug fix Version: 2.1.0i1 Graphs showed an exception. Now the behavior of version 1.6 is restored where each metric is plotted in a single graph. Metrics are not aggregated by IP address.