Not to update recent tasks split pairs when shell transition enabled

onTaskAppeared() and onTaskInfoChanged() should not update recent
tasks split pairs when shell transition enabled.

Bug: 244132711
Test: Manually check if the split pairs exist after swipe to home.
Change-Id: Ief5ae81909f6809727bf685c547e81599ff7d4ec
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/fullscreen/FullscreenTaskListener.java b/libs/WindowManager/Shell/src/com/android/wm/shell/fullscreen/FullscreenTaskListener.java
index 0d75bc4..f1465f4 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/fullscreen/FullscreenTaskListener.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/fullscreen/FullscreenTaskListener.java
@@ -105,8 +105,8 @@
         state.mTaskInfo = taskInfo;
         mTasks.put(taskInfo.taskId, state);
 
-        updateRecentsForVisibleFullscreenTask(taskInfo);
         if (Transitions.ENABLE_SHELL_TRANSITIONS) return;
+        updateRecentsForVisibleFullscreenTask(taskInfo);
         if (shouldShowWindowDecor(taskInfo) && mWindowDecorViewModelOptional.isPresent()) {
             SurfaceControl.Transaction t = new SurfaceControl.Transaction();
             state.mWindowDecoration =
@@ -135,8 +135,8 @@
             mWindowDecorViewModelOptional.get().onTaskInfoChanged(
                     state.mTaskInfo, state.mWindowDecoration);
         }
-        updateRecentsForVisibleFullscreenTask(taskInfo);
         if (Transitions.ENABLE_SHELL_TRANSITIONS) return;
+        updateRecentsForVisibleFullscreenTask(taskInfo);
 
         final Point positionInParent = state.mTaskInfo.positionInParent;
         if (!oldPositionInParent.equals(state.mTaskInfo.positionInParent)) {