Merge "Unset last orientation for fixed orientation transient launch" into...

Merge "Unset last orientation for fixed orientation transient launch" into tm-dev am: 4fa92e4a am: 9c637ef0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17045437

Change-Id: I843f712df947052067b918c8bb3230716b09bc39