[automerger skipped] Return false for isSplitSelectionActive() if controller not initialized am: f9b81f24a4 -s ours

am skip reason: Merged-In I9d7d54d5f7571286778c0e82ef4082f9b5843c1d with SHA-1 b449116345 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/27556735

Change-Id: I991e21b9423eaaf4854e0a1732468100376c5fa4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>