Dynamic aggregate for memory returns weird values

[Chekov2k]

Hello,
we are using the Gnocchi Grafana datasource v1.6.2 and are trying to query the metrics of an OpenStack cluster. We noticed that the dynamic aggregate for the instance metric memory returns weird values. If you compare the resource search method using metric regex memory with dynamic aggregates using the Operation(metric memory mean), the result will be very different. Only the resource search method returns the correct memory allocation for each instance while the dynamic aggregate just returns zeros