Checkmk Werk 12609: Fix metric selection in graph designer

ID: 12609 Title: Fix metric selection in graph designer Component: Multisite Level: 1 Class: Bug fix Version: 2.1.0i1 If you tried to add a metric in e.g. the custom graph designer, the metric dropdown showed no metrics after entering a hostname. A workaround was to add the metrics via the "Add this metric to..." option in the "Service metrics" column of a service.