ID 143546 - Viewer masks are incorrect when pixel aspect ratio is not 1.0 / anamorphic in the Nuke Studio/Hiero timeline viewer only

Problem summary
Viewer masks are incorrect when pixel aspect ratio is not 1.0 / anamorphic in the NukeStudio/Hiero timeline viewer only

Customer reported version
nuke.n/a

Customer reported platform

Steps to reproduce

1) Open Nuke Studio/Hiero

2) Import some footage, 1920x1080 or higher resolution, and add it to a sequence

3) In the Viewer, set the Viewer masking to square, and enable the action safe Viewer guide

4) In the sequence set the Output Resolution to 1024x778 1K_Super_35(full-ap), the Viewer mask and guide are both square:

5) In the sequence set the Output Resolution to 914x778 (2.00) 1K_Cinemascope, the guide remains square, but the Viewer mask is not:

Expected behaviour
For the Viewer mask to have the correct aspect ratio when working with an anamorphic sequence 

Actual behaviour
The Viewer mask gets adjusted depending on timeline pixel aspect ratio

Workaround
None

Reproduced by support
This bug has been reproduced in:
Nuke Studio 13.2v4 - Windows 10, CentOS 7, macOS 12 Monterey

Nuke Studio 12.0v1 - Windows 10

Reproduced by QA:

Nuke Studio 9.0v1 - OSX Mountain Lion

Hiero 1.8v2 - OSX Mountain Lion

Earliest version tested
Hiero 1.8v2 - This issue appears to be in all tested versions of the product