Hey folks I've got a hermetically re-runnable spicedb test fixture (powered by Bazel and nix/docker) that runs this in sequence: 1. spins up a spanner db (via [emulator](https://cloud.google.com/sdk/gcloud/reference/emulators/spanner/start)) 2. runs

spicedb migrate HEAD

against the spanner db 3. starts up spicedb server 4. runs some simple go unit tests against the spicedb instance (create schema, write relationships, check relationships) It works for the most part except I sometimes get

rpc error: code = NotFound desc = unable to list namespaces: spanner: code = "NotFound", desc = "Table not found: namespace_config"

from the go client when I call

spicedbClient.CheckPermission

. I'm wondering if the

spicedb migrate HEAD

runs the migration asynchronously. The log file is kinda sparse. If I add a

<-time.NewTimer(5*time.Second).C

before calling

CheckPermission

in the UTs, I get a 100% pass rate. This could very well just be behavior from the spanner emulator but I thought I'd ask here first.