The _clipf() function clamps any values above 1.0:
// Apply exposure and white balance factors
const float Rraw = _clipf((b[0] * p_R * k) / min_b);
const float Graw = _clipf((b[1] * p_G * k) / min_b);
const float Braw = _clipf((b[2] * p_B * k) / min_b);
If I remember correctly an inappropriate clamp was removed from other templates in the P-2013-001 app.