fixup! Support for renaming existing events.
fixup! Support for renaming existing events.

CR Feedback: guard against `newName` being null or whitespace.

askheaves/Its.Cqrs,commonsensesoftware/Its.Cqrs,commonsensesoftware/Its.Cqrs,askheaves/Its.Cqrs,askheaves/Its.Cqrs,commonsensesoftware/Its.Cqrs