Don't discard custom grid on config changes

        InvariantDeviceProfile oldProfile = new InvariantDeviceProfile(this);

        // Re-init grid

        // TODO(b/131867841): We pass in null here so that we can calculate the closest profile

        // without the bias of the grid name.

        initGrid(context, null);

        initGrid(context, Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null));

        int changeFlags = 0;

        if (numRows != oldProfile.numRows ||