Checkmk Werk 11073: NagVis snapin: Fix empty content during refresh

ID: 11073 Title: NagVis snapin: Fix empty content during refresh Component: Multisite Level: 1 Class: Bug fix Version: 1.7.0i1 When the NagVis snapin is used with a larger number of maps or objects on these maps, the refresh of the map states takes some time. During longer refresh times, the snapin was not displaying the maps at all. The already known state is now shown during refresh until the new information is available.