I think implementation-wise there is a smart solution: use the usual 2-key full disk encryption and in case of emergency, wipe the master key securely.
Same problem started 1~2 days ago. I am using a China-bought version of Mate 10 pro. I have contacted Huawei Overseas and Huawei China and Google. They have noted the issue down and hope they can provide a solution sooner than later.
I heard the Xiaomi phones are facing similar problems. Since...