Check_MK Werk 6323: Fixed graph PNG export of other than first graphs

ID: 6323 Title: Fixed graph PNG export of other than first graphs Component: metrics Level: 1 Class: Bug fix Version: 1.6.0i1 When using the PNG export of a graph (e.g. from the context menu of a graph), only the export of the first graph of a host/service was working. Other graphs produced an error message.