ID 398188 - Executing nuke.scriptClear() in the Script Editor multiple times crashes Nuke

Problem summary:
Executing nuke.scriptClear() in the Script Editor multiple times crashes Nuke.

Customer reported version:
nuke.11.3v4

Customer reported platform:
centos7

Steps to reproduce:

1) Open Nuke and the Script Editor.

2) Run the following command in the Script Editor:

_VIEWER_INPUT_NAME = 'VIEWER_INPUT'def create_viewer_input_on_root():    root = nuke.thisNode()    if not root['name'].value():        viewer_input_node = nuke.createNode('Grade', 'name {}'.format(_VIEWER_INPUT_NAME))        viewer_input_node['xpos'].setValue(82)        viewer_input_node['ypos'].setValue(77)nuke.addOnCreate(create_viewer_input_on_root, nodeClass='Root')

3) Run the following command in the Script Editor until Nuke crashes: nuke.scriptClear(resetToCompiledDefaults=False)

Expected behavior:
Nuke should remain stable when running the command: nuke.scriptClear(resetToCompiledDefaults=False)

Actual behavior:
Nuke crashes when executing the command: nuke.scriptClear(resetToCompiledDefaults=False)

Workaround:
Using the command: nuke.removeOnCreate(create_viewer_input_on_root, nodeClass='Root') after the VIEWER_INPUT node is created de-registers the callback, mitigating the crash.

Reproduced by Support in:
Nuke 11.3v4 - CentOS 7

Nuke 11.3v1 - CentOS 7

Nuke 11.2v6 - CentOS 7

Nuke 11.2v5 - CentOS 7

Unable to reproduce bug in:

Nuke 11.2v4 - CentOS 7

Windows 10, macOS - All versions

Earliest version tested:
Nuke 11.2v4 - CentOS 7, Windows 10, macOS