Fix statusbar appearance during predictive back to home by fling

Bug: 317218355
Flag: ACONFIG com.android.window.flags.predictive_back_system_animations DISABLED
Test: Manual, i.e. verifying statusbar appearance during back to home
Change-Id: I158d4d26bd262337eb3dd09e56c1999935e9788b
diff --git a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
index 9e58160..82453c9 100644
--- a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
+++ b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
@@ -449,6 +449,7 @@
                     mBackInProgress /* fromPredictiveBack */);
         startTransitionAnimations(pair.first, pair.second);
         mLauncher.clearForceInvisibleFlag(INVISIBLE_ALL);
+        customizeStatusBarAppearance(true);
     }
 
     private void finishAnimation() {