https://github.com/OctopusDeploy/Issues/issues/264

When displaying snapshots, show any variables whose scope values don't appear in the current set available to the project (owner)

At the start of deployment, warn if scope values have changed (e.g. if Production is deleted and recreated, there will be a variable scoped to the old Production environment ID, apparently useful but not applied)

Where the name associated with a scope value has changed, show the old and new names