Error Domain=org.openid.appauth.general Code=-15 "Nonce mismatch"

Describe the bug
Error Domain=org.openid.appauth.general Code=-15 "Nonce mismatch".

Xcode 10
Swift 4.2
AppAuth version 0.95.0

To Reproduce
Steps to reproduce the behavior:

1. Singing button clicked in the app
2. Browser opened
3. enter login credentials
4. Redirected to app and See error

Expected behavior
Should open the app and get in the app

Smartphone (please complete the following information):

• Device: iPhone X
• iOS: iOS 12
• Browser: Safari

Additional context
`let currentAuthorizationFlow = OIDAuthState.authState(byPresenting: request, presenting: self, callback: { [weak self] (authState, error) in

        guard let strongSelf = self else {
            return
        }
        
        if let authState = authState, let authCode = authState.lastTokenResponse?.idToken {
            if strongSelf.mainViewModel.updateSessionData(accessToken: authCode, authState: authState) {
                strongSelf.mainViewModel.loginAction.apply(()).start()
            } else {
                strongSelf.loginActivityView.isHidden = true
            }
        }
        else {
            print("Authorization error: \(String(describing: error?.localizedDescription))")
            
            if strongSelf.mainViewModel.shouldDefaultToLoyalty {
                let loyaltyPermission = PermissionHandler.loyaltyPermission
                
                for (index, permission) in strongSelf.mainViewModel.stateStorage.userPermissions.enumerated() {
                    if permission.permissionType == .loyalty {
                        strongSelf.mainViewModel.stateStorage.userPermissions[index] = loyaltyPermission
                    }
                }
            }
            
            //Do not show alert in case of general error(org.openid.appauth.general)
            if let generalError = error as NSError?, generalError.code == -4 {
                return
            }
            
            let confirmAction = UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .default, handler: {[weak self] (_) in
                self?.dismiss(animated: true, completion: nil)
            })
            //Handle View Hierarchy - Add delay to alert on clicking done button from SafariViewController
            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
                AlertView.show(alertContents: AlertView.Content(title: NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Unknown Error", comment: ""), buttonTitle: "", actions: [confirmAction]))
            }
        }
    })`

The report names no source file or test. Start by reproducing the flow through OIDAuthState.authState(byPresenting:presenting:callback:) with AppAuth 0.95.0 on iOS 12, then trace where the nonce-mismatch error is produced; done means identifying the cause and providing a verified resolution.