NONE for Test Setup / Teardown causes "Undefined keyword" error

[MrBIN89]

Describe the bug
Special NONE value (to disable test case setup or teardown) is highlighted red, complains Undefined keyword: NONE
http://robotframework.org/robotframework/latest/RobotFrameworkUserGuide.html#test-setup-and-teardown:
It is also possible to use value NONE to indicate that a test has no setup/teardown.

To Reproduce
Steps to reproduce the behavior:

1. Type the code below in VSCode editor

*** Settings ***
Test Setup    NONE
Test Template    NONE
Test Timeout    NONE

*** Test Cases ***
My Test Case
    [Setup]    NONE
    [Template]    NONE
    [Tags]     NONE
    [Timeout]    NONE
    Should Be True    ${TRUE}
*** Keywords ***

Expected behavior
NONE is known and defined value for settings, such as Test Setup, Test Teardown, [Setup], [Teardown], Test Template, [Template], etc.
Screenshots

Versions:

• OS: Windows 10
• Robot Framework Version: 4.1.3
• Robot Framework Language Server Version: 0.41.0
• Client Version: VSCode 1.65.0

[fabioz]

Thanks for the report. Marking as high-priority.

[fabioz]

This is now fixed.

As a note, it's available in a pre-release if you want to check it (see: https://code.visualstudio.com/updates/v1_63#_pre-release-extensions on how to use pre-releases).