Fixes missing folder label after launcher restarts. am: e148652075 am: aa823d103e am: 1587221298

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/12003751

Change-Id: I6d817e9284cc4ffbdafcb97b48f693f3d96f6e1a