ID 438370 - cropWindow outputs incorrect value to scene description after setting it in the RenderSettings node

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Problem summary
cropWindow outputs incorrect value to scene description after setting it in the RenderSettings node

Customer reported version
Katana 3.2v4

Customer reported platform
N/A

Steps to reproduce

NOTE: This requires either 3Delight or RenderMan to demonstrate loss of precision as Arnold only outputs the cropped resolution.

1) Build the following Node Graph: CameraCreate->RenderSettings->Render

2) Edit the RenderSettings node and change the second value of the cropWindow parameter to 0.7

3) Right-click the render node and select Debug->Open * Output in External Editor

Expected behaviour
CropWindow or crop value in the output should contain 0.7 as set in the cropWindow parameter

Actual behaviour
CropWindow or crop value contains 0.69921875

Workaround
Set overscan parameter on RenderSettings node to compensate for any resolution lost during crop

Reproduced by support

This bug has been reproduced in:

Katana 3.6v1 - CentOS 7 - Windows 10
Katana 3.5v3 - CentOS 7 - Windows 10
Katana 3.5v1 - CentOS 7 - Windows 10
Katana 3.2v4 - CentOS 7 - Windows 10
Katana 3.1v1 - CentOS 7 - Windows 10
Katana 3.0v1 - CentOS 7 - Windows 10
Katana 2.5v1 - CentOS 7 - Windows 10
Katana 2.0v1 - CentOS 7
Katana 1.6v3 - CentOS 7

Earliest version tested
Katana 1.6v3 - This issue appears to be in all versions of the product
 

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