CoreData fetch method should be in performAndWait

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open override func read(_ entityId: String) -> Model? {
        guard let entries = try? context.fetch(request(entityId)),
            !entries.isEmpty,
            let entry = entries.first
        else {
            return nil
        }
        ...
        return entity
    }

try? context.fetch(request(entityId)) should be wrapped into context.performAndWait.

RedMadRobot / DAO

CoreData fetch method should be in performAndWait #11