default OCIOCDLTransform in LogC4 working space clamps high values

We noticed that when you plugin an OCIOCDLTransform node (default ) to an exr with high values, the high values clamp
Repro steps,
Bring in default OCIOCDLTransform node, set the working space set to LogC4 in nuke13 , plug it into a render/exrs with high values (bright sky/ clouds .etc) , the high values clamp
The clamping only happens in nuke13/OpenColorIO2.0.4 but not in nuke12/OpenColorIO v1

Is this issue known/flagged before? and if there’s a fix release / way to fix