P: the ability to "uncrop" 9:16 images

I shoot 9:16 with my phone camera, as it makes it easier to compose for full-screen social media posts. It still captures the full 3:4 image, and inside iOS photos it's possible to tap "crop" and then extent the image or move left/right. Unfortunately once imported into Lightroom mobile, the 9:16 crop becomes baked in.