ID 482982 - The ScanlineRender bounding box output is inconsistent.

Problem summary
The ScanlineRender bounding box output is inconsistent.

Customer reported version
nuke.n/a

Customer reported platform

Steps to reproduce
1) In Nuke, add a ScanlineRender node.
2) Create a 3d Card and a Checkerboard for the img input.
3) Connect the Card to the Obj input of the ScanlineRender node.
4) Create a Reformat node and attach it to the BG input of the ScanlineRender node.
5) Adjust the Reformat node to be a larger size than the Project's format. 
5) View the node and observe the bounding box.

Expected behavior
The bounding box output should appear consistent. 

Actual behavior
The bounding box appears inconsistent and larger than needed.

Workaround
Setting the Project Format to the same size as the Reformat node corrects the bounding box.

Reproduced by Support in
Nuke 13.0v3 - macOS 10.13.6, Windows 10
Nuke 13.0v1 - macOS 10.13.6
Nuke 12.0v1 - macOS 10.13.6
Nuke 11.0v1 - macOS 10.13.6
Nuke 10.0v1 - macOS 10.13.6
Nuke 9.0v1 - macOS 10.13.6
Nuke 8.0v1 - macOS 10.13.6, Windows 10

Earliest version tested
Nuke 8.0v1 - This issue appears to be in all versions of the product