Strange behavior of HSV node

please look the picture.
although HSV node’s V=1, its output contains V=0 slice.

hsv_bug.v4p (6.7 kB)

is there a (5) if you hover the v iobox ? im on osx :)

yes, this is weird.
it seems like HSV does something weird when it has super small negative values i the Hue pin

no, it is single.

oh, that’s right. it is reproducible when Hue value is like -1e-100.