Strange image orientation with all camera apps

I've just noticed that on my *Wileyfox Swift* there's something strange going on with image orientation: * taking a landscape image, everything is fine: the resulting JPG is in landscape, and Exif has Orientation:0 – as one would expect. * taking a portrait image however also has Orientation:0, and the resulting JPG is in portrait – while on all my other devices, the JPG would remain landscape but have e.g. Orientation:6 (rotate 270°) in its Exif. I've tried with multiple camera apps, including the integrated one. Two other camera apps I use on other devices as well, where they work as expected. What might go on here, and how to fix it up? I need it the "standard way" for post processing scripts etc. Though the results "look the same" in image viewers, the technical details/differences are relevant in my case, so I wish the Wileyfox to adhere to the standards :)