RNCryptor: Crash on deinit of Decryptor in Xcode 10b3

Hi, first of all thank you for this great library!

Im using Swift version for quite some time now and after updating to xcode 10 beta 3 im getting crash every time i run the app. so i created new project in xcode 10 beta 3 and added rncryptor through pods 5.0.3 version. in my view did load i have below code

` // Encryption let text = “text to encrypr” let data = text.data(using: String.Encoding.utf8) let encryptedData = RNCryptor.encrypt(data: data!, withPassword: “pass”)

    encryptedText = encryptedData.base64EncodedString(options: NSData.Base64EncodingOptions(rawValue: 0))
    
    print("original text: \(text)")
    print("encrypted text: \(encryptedText)")
    
    
    var decryptedText = ""
    
    //convert encrypted string to data
    let dataToDecrypt = NSData(base64Encoded: encryptedText, options: NSData.Base64DecodingOptions(rawValue: 0))
    
    // Decryption
    do {
        let originalData = try RNCryptor.decrypt(data: dataToDecrypt! as Data, withPassword: "pass")
        decryptedText = String(data: originalData, encoding: String.Encoding.utf8)!
    } catch {
        print(error)
    }
    
    print("decrypted text: \(decryptedText)")

`

what i want is to encrypt a String, then convert the Data and save it to firebase. this part works, but when i want to decrypt the String that i saved to firebase the problems start.

if i pass encryptedData that I get from RNCryptor to the decryptor, it works fine, but when i convert my base64 dtring to data and pass it to decryptor it crashes.

let originalData = try RNCryptor.decrypt(data: encryptedData, withPassword: "pass") This exact code was working fine on swift 4 and xcode 9.x.