ID 584428 - Nuke crashes with a "Too many open files" error when opening a large script

Problem summary
Nuke crashes with a "Too many open files" error when opening a large script.
 
Customer reported version
Nuke 12.0v3
 
Customer reported platform
N/A
 
Steps to reproduce
 
1) Open Nuke.
 
2) Open the attached script.
 
3) Run the following code, to reconnect all Read nodes in the script. You will need to change the file paths to a PNG and EXR sequence that exist on your system.

for n in nuke.allNodes():    if n.Class() == "Read":        n["file"].setValue("C:/_test_footage/frame_count.####.png")    if n.Class() == "Group":        try:            n["file"].setValue("C:/_test_footage/frame_count.####.exr")        except:            pass