Maybe the blur value should not be able to be kept at 0, to avoid problems.
It doesn't really cause any problems. Sometimes, under certain conditions, you can indeed get quite sharp glare. It's just that if you want to use glare primarily to cover up aliasing around bright spots, but don't really want to have obvious glares on your image, then you just crank up blur to make sort of bloom out of that :) And such a bloom then gets quite unnoticeable.
Very nice. Look forward to trying this out when released stable.
