Earlier, a patent apparently filed by Huawei showed a phone with a flip-camera module along the lines of the Asus ZenFone 6. Now, a new document along the same lines has been found. This one, like the Samsung Galaxy A80, has triple cameras that can serve either side of the device.
https://www.notebookcheck.net/Huawei-may-have-patented-a-triple-flip-camera-phone.448211.0.html