Merge "Fix launcher-in-transition-targets detection" into sc-v2-dev am: a7b9f89e5b am: 604183fb2a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14706420

Change-Id: I2491076af449891bfaf10f097cc03da3f4e86f75