Merge "Do not start pending animation if another transition is collecting." into main

            return;

        }

        if (mWindowManagerService.mRoot.mTransitionController.isCollecting()) {

            Slog.v(TAG, "Skip predictive back transition, another transition is collecting");

            cancelPendingAnimation();

            return;

        }

        // Ensure the final animation targets which hidden by transition could be visible.

        for (int i = 0; i < targets.size(); i++) {

            final WindowContainer wc = targets.get(i).mContainer;

            Slog.e(TAG, "Remote animation gone", e);

        }

        mPendingAnimationBuilder = null;

        mNavigationMonitor.stopMonitorTransition();

    }

    /**