Already registered: /ds

[Tim McIver]

Hello,

I started fuseki with
fuseki-server --update --mem /ds

But on a second invocation, I get an exception:

org.apache.jena.fuseki.FusekiException: Already registered: /ds

Why can't I reuse that name? If I were not using an in-memory database, 
would I lose access to my data?

Tim McIver