ID 350939 - [OSX] Background render forces focus to Nuke Studio panel for each background render

Problem summary
Background render forces focus to Nuke Studio panel for each background render in the queue when it starts.

Customer reported version
nuke.11.1v3

Customer reported platform
10.12

Steps to reproduce
1) Open Nuke Studio.
2) Select the Project Bin, then press "Cmd+i" to open the import dialogue.
3) Import several clips.
4) Select the clips in the item bin, then drag them to the timeline to arrange them into a sequence.
5) Select each of the clips in the timeline, then right click one and choose "Export."
6) Select process as shots, then choose the "transcode shots DPX preset."
7) Select Export. The background render panel should reveal itself if not already revealed.
8) Open another application and place it over top of the Nuke studio window.
Result: When the render completes and starts exporting the next clip in the render queue, Nuke studio will take focus and pop up over the window opened in step 8.

Workaround
Disable "Focus Background Renders" under preferences>Performance>Threads/Processes,

Reproduced by support
This bug has been reproduced in:
11.1v3 - OSX 10.13.4
11.1v1 - OSX 10.13.4
11.0v4 - OSX 10.13.4
11.0v1 - OSX 10.13.4

Unable to reproduce bug in:
11.1v3 - Windows 10, Centos 7.4
11.1v1 - Windows 10, Centos 7.4
11.0v4 - Windows 10, Centos 7.4
11.0v1 - Windows 10, Centos 7.4
10.5v7 - OSX 10.13.4, Windows 10, Centos 7.4

Earliest version tested
10.5v7 - OSX 10.13.4 - This issue no longer appears in this version and has regressed

Expected behaviour
Focus should only be taken on the first render item when starting a frame server background render.

Actual behaviour
Focus is taken on each separate background render in the queue.