[automerger skipped] Fix IME flicker by dispatching unrelated insets after unset IME frozen am: 83c396e9e7 -s ours am: 6e71f53538 -s ours

am skip reason: Merged-In I95c5b45bd4cf9c30ff7771b2db485c8ae2b0c6db with SHA-1 938eb8fd2d is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17061633

Change-Id: Ia689b448b046381d43aef61bdb974afef09c3b7a