ID 159600 - OCIO - Colorspace preferences do not save correctly

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Problem summary
OCIO colorspaces knobs does not get serialised correctly for a save project.
 
Customer reported version
nuke.10.0v4
 
Customer reported platform
windows7
 
Steps to reproduce
  1. Open Nuke
  2. Press S in node graph to bring up project settings
  3. Navigate to the Color tab
  4. Switch color management to 'OCIO'
  5. Switch OCIO config to 'aces_1.0.1' (probably happens with any non-default OCIO config)
  6. Switch the colorspaces to match the following:
    1.  workingSpaceLUT "ACES - ACES2065-1" 
    2.  monitorLut ACES/DCDM
    3.  int8Lut "ACES - ACEScc"
    4.  int16Lut "ACES - ACEScc"
    5.  logLut "ACES - ACEScg"
    6.  floatLut "ACES - ACES2065-1"
  7. Save script and close Nuke
  8. Open Nuke and script
  9. Result:
    The color management was still set to OCIO and the OCIO config set to 'aces_1.0.1', but the colorspaces have changed to the following
 
Workaround
Unknown.
 
Reproduced by support
Nuke10.0v4 on OSX 10.11.3
 
Expected behaviour
OCIO settings to load as saved
 
Actual behaviour
OCIO settings do not load correctly

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