Multiple dynamic_reconfigure servers in the same node? [Python]

It is possible to have multiple dynamic_reconfigure servers in the same node? When I try that I get this error message:

Tried to advertise a service that is already advertised in this node

Moreover, the first configuration server become unusable. I though that it should be possible since a set of nodelets can run on the same node with different dynamic configuration servers. Or it is more complex than it seems? --- Edit: Check a more updated question about this issue: https://answers.ros.org/question/289040/multiple-instances-of-a-dynamic_reconfigure-server-in-the-same-client-node/