Merge "Fix an issue where tasks moving to front would collapse the stack." into tm-dev

    private void animateSwitchBubbles() {

        // If we're no longer expanded, this is meaningless.

        if (!mIsExpanded) {

            mIsBubbleSwitchAnimating = false;

            return;

        }

        mIsBubbleSwitchAnimating = true;

        // The surface contains a screenshot of the animating out bubble, so we just need to animate

        // it out (and then release the GraphicBuffer).

        PhysicsAnimator.getInstance(mAnimatingOutSurfaceContainer).cancel();

            }, 0);

            if (!mIsExpansionAnimating) {

                mIsBubbleSwitchAnimating = true;

                mSurfaceSynchronizer.syncSurfaceAndRun(() -> {

                    post(this::animateSwitchBubbles);

                });