Checkmk Werk 11602: Fix errors when cloning BI views

ID: 11602 Title: Fix errors when cloning BI views Component: Multisite Level: 1 Class: Bug fix Version: 2.0.0i2 When cloning some builtin views, like for example "All aggregations", the view editor showed up an error message 'Element "" does not exist anymore'. This was caused by some invalid painter definition in the builtin configuration. CMK-6245