Fixes missing folder label after launcher restarts. am: e148652075 am: aa823d103e am: ec42d9e4eb am: da6267e2b5

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

Change-Id: Ie292998ea7b4c02b1e04d89bba4ff1c5d85c97be