ID 438898 - Enable Display Transform cannot be turned off in color widget parameter of renderer ShadingNodes

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Problem summary
Enable Display Transform cannot be turned off in color widgets of renderer ShadingNode parameters.

Steps to reproduce
  1. Create a DlShadingNode node and set its edit flag.
  2. Change the DlShadingNode node's nodeType parameter to any with a color widget parameter (e.g. anisotropic).
  3. Click a color widget parameter's color swatch to open the color picker dialog.
  4. Click the Enable Display Transform checkbox.
Expected behavior
Enable Display Transform is unchecked.

Actual behavior
Enable Display Transform re-checks itself and remains checked.

Workaround
Unknown.
 
Customer reported version
Katana 3.2v4

Customer reported platform
RHEL 7

Reproduced by support

This bug has been reproduced in:
3.6v1 - CentOS 7 - Windows 10
3.5v3 - CentOS 7 - Windows 10
3.5v1 - CentOS 7 - Windows 10
3.2v4 - CentOS 7 - Windows 10
3.1v1 - CentOS 7 - Windows 10
3.0v1 - CentOS 7 - Windows 10 - Regression

Unable to reproduce bug in:
2.6v4 - CentOS 7 - Windows 10

Earliest version tested
Katana 2.6v4 - This issue doesn't appear in this version.

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