Merge "Invalidate recent tasks when the splits (or split info) changes" into...

Merge "Invalidate recent tasks when the splits (or split info) changes" into sc-v2-dev am: cc4a85c0 am: 9f667fb0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16289022

Change-Id: Ib7219ba27b3209d5b8eb62bcc83d6383b833c9d7