ID 369212 - The premultiplied knob is non-functional when viewing Read nodes with a .tif file while using an OCIO colorspace

Problem summary:
The premultiplied knob is non-functional when viewing Read nodes with a .tif file while using an OCIO colorspace.

The OCIO profiles incorrectly premultiply the .tif images when set to a non-nuke-default colorspace.

Customer reported version:
nuke.11.2v3

Customer reported platform:
centos7

Steps to Reproduce:
1) From Nuke, add in a Read node and include a .tif file.
2) Press S on the keyboard while hovering the mouse in the Node Graph to open the Project Settings.
3) Select the Color tab, and set the color management to OCIO.
4) Choose any available OCIO config.
5) Select the Read node with the .tif, and change the premultipled knob to enabled/disabled, viewing any changes.

Workaround:
Place a Premult node after the Read node with an OCIO colorspace.

Reproduced by Support in:
Nuke 11.2v4 - Windows 10, CentOS 7, macOS 10.13 High Sierra
Nuke 11.2v1 - Windows 10
Nuke 11.1v6 - Windows 10
Nuke 11.1v1 - Windows 10
Nuke 11.0v4 - Windows 10
Nuke 11.0v1 - Windows 10
Nuke 10.5v7 - Windows 10
Nuke 10.5v1 - Windows 10
Nuke 10.0v6 - Windows 10
Nuke 10.0v1 - Windows 10, CentOS 7, macOS 10.13 High Sierra

Unable to reproduce bug in:
Nuke 9.0v9 

Earliest version tested:
Nuke 9.0v9 -  This feature did not exist before this version.

Expected behavior:
The premultipled knob should enable/disable the operation when applied with an OCIO colorspace.

Actual behavior:
The premultiplied knob does not function when enabling/disabling the effect while an OCIO colorspace is applied.