Closing the external resources setup window prompts "DelphiLint will not be usable" even if all settings are correct

[fourls]

Prerequisites

• This bug is in DelphiLint, not SonarDelphi, SonarQube, or my Delphi code.
• This bug has not already been reported.

DelphiLint version

0.6.0

SonarDelphi version

0.40.0

SonarQube version

No response

Issue description

When configuring paths to external resources using the "External Resources Setup", attempting to close the window by clicking X displays the following warning in all cases, even when all values are valid (as seen in the image):

This message is misleading as DelphiLint continues to function with no problems.

Steps to reproduce

1. Open the DelphiLint settings (DelphiLint > Settings...).
2. Click "Set up external resources" to open the External Resources Setup.
3. Try to close the window by clicking the X in the title bar (NOT by clicking "Apply this configuration").

Minimal Delphi code exhibiting the issue

No response