ID 446227 - Frame server's Background Renders Log panel shows incorrect render times when rendering Deep images

Problem summary
Frame server's Background Renders Log panel shows incorrect render times when rendering Deep images

It looks like when rendering Deep files, the render time is added together, rather than being per frame

Customer reported version
nuke.11.3v4

Customer reported platform
10.13

Steps to reproduce

1) Open the attached Nuke script

2) Select the DeepWrite node, and render some frames, timing how long they take roughly with a stopwatch. Notice the actual time is not the same as the Background Renders Log panel:

3) Render using the standard Write node using the frame server, notice the render times are accurate for the amount of time take per frame:

Expected behaviour

For the render times to be displayed accurately

Actual behaviour
Each render time was added to the previous

Workaround
Unknown.

Reproduced by support

This bug has been reproduced in:
Nuke 12.2v2 - Windows 10 - CentOS 7.7

Nuke 12.0v1 - Windows 10

Nuke 11.0v1 - Windows 10 - CentOS 7.7

Earliest version tested
Nuke 11.0v1 - This feature did not exist before this version