sfx exclusion edge case fixes
sfx exclusion edge case fixes

systemjs/builder,alexisvincent/builder,jrauschenbusch/builder,jrauschenbusch/builder,alexisvincent/builder,systemjs/builder,whitneyit/builder,alexisvincent/builder,whitneyit/builder,systemjs/builder,lookfirst/builder,jrauschenbusch/builder,lookfirst/builder