ID 154613 - Sony MXF HDR files with RGB values over 1 (superwhites) are clamped/clipped to 1 in the Nuke Studio/Hiero viewer

Problem summary

Sony MXF files with RGB values over 1 are clamped/clipped to 1 in the Nuke Studio/Hiero viewer.

Customer reported version
Hiero

Customer reported platform

macOS 10.15

Steps to reproduce

1) In Nuke Studio/Hiero, import footage with RGB values over 1. For example sample footage from https://sonycine.com/testfootage/ like clip A005C039

2) In the Viewer, press/hold CTRL and left-click/drag the mouse to view different RGB values, colour pick the sky in the case of .

3) Observe the values after going over any super white or other colors.

*If you gamma / gain down the Viewer, you can see that the highlights are clamped visibly as well.

Expected behavior
The RGB values should display accurately in the Viewer. 

Actual behavior
The RGB values are clamped to 1 in the Nuke Studio/Hiero Viewer, which displays the footage inaccurately. This issue does not occur in the vanilla Nuke Viewer, as it shows RGB values above 1. Transcoding the footage does not exhibit the issue and is only shown in the Viewer.

Workaround
There is no available workaround at this time.

Reproduced by Support in:
Nuke Studio/Hiero 13.0v2 - Windows 10, CentOS 7

Nuke Studio/Hiero 13.0v1 - Windows 10,

Nuke Studio/Hiero 12.2v1 - Windows 10,

Nuke Studio/Hiero 12.1v1 - Windows 10,

Nuke Studio/Hiero 12.0v1 - Windows 10,

Nuke Studio/Hiero 11.0v1 - Windows 10,

Nuke Studio/Hiero 10.0v1 - Windows 10,

Nuke Studio/Hiero 9.0v1 - Windows 10, CentOS 7

Earliest version tested
Nuke Studio/Hiero 9.0v1 - This issue appears to be in all versions of the product