Concurrency issues when creating multiple DSUs in parallel

[TiagoV-PDMFC]

eg:

 sc.setMainDSU(walletDSU);
 sc.refreshSecurityContext()
sc.on("initialised", () => {
    const keySSI = KeySSIApi.createTemplateSeedSSI(...args)
    resolver.createDSU(keyssi, (err, dsu) => {
       callback(err, dsu)
    });
});

If you run this code in parallel using the same walletDSU as a SC, this will break under the createDSU call, since it will try to concurrently store the seedSSI in the current enclave and trigger a out of SYNC error