Checkmk Werk 12555: Views: Fix crash when sorting hosts by IPv4 addresses

ID: 12555 Title: Views: Fix crash when sorting hosts by IPv4 addresses Component: Multisite Level: 1 Class: Bug fix Version: 2.1.0i1 When trying to sort a host view by the IPv4 address column, an exception like "TypeError ('>' not supported between instances of 'str' and 'tuple')" occurred when the hosts to be sorted had mixed addreses (IPv4 addresses and host or DNS names) configured.