Connections Desktop Plugins Password Save Policy

During the latest automated deployment of the HCL Connections Desktop Plug-ins for Microsoft™ Windows™ , I had issues activating the Password Save Policy. We wanted to disable the option that users can save passwords. The documentation tells us, that the registry key HKLM\SOFTWARE\Wow6432Node\IBM\Social Connectors\Settings\Password Save Policy needs to be set to 1 to achieve this. Sadly this does not work, and I remembered, that I investigated this error already some years ago.
This is a companion discussion topic for the original entry at https://stoeps.de/posts/2021/connections_desktop_plugins_password_save_policy/