Check_MK Werk 5658: Fixed possible "TypeError" on "Agent update status" view

ID: 5658 Title: Fixed possible "TypeError" on "Agent update status" view Component: Multisite Level: 1 Class: Bug fix Version: 1.5.0i3 The exception "TypeError: expected string or buffer" could occur when using the service grouping feature (Global settings > Grouping of services in table views).