Merge "Cancel animation in split screen, if the leash is lost" into main

            // Make mImeSourceControl point to the new control before starting the animation.

            if (hadImeSourceControl && mImeSourceControl != imeSourceControl) {

                mImeSourceControl.release(SurfaceControl::release);

                if (android.view.inputmethod.Flags.refactorInsetsController()

                        && !hasImeLeash && mAnimation != null) {

                    // In case of losing the leash, the animation should be cancelled.

                    mAnimation.cancel();

                }

            }

            mImeSourceControl = imeSourceControl;