T3T1_es-device_tests-zcash-test_sign_tx.py::test_external_presigned

This UI test differs from master.

Master: 2f261e55a5a335c29533bc0476492a01c7bacff258a274cead62cd61def125de
Current: c5cb6e9da8d8406f94d22c135a232c0b732e3a346456f4ed930496e28e0fc7c7

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