"No blocks settings to update" error after checking off & on the "Show Global Blocks"

Problem/Motivation

Unchecking & then re-checking the Show Global Blocks option will show Error message: No blocks settings to update, preventing Global blocks from being shown, even after page reload or cache clear, until you place a block.

Steps to reproduce

Fresh Drupal install, install the module and the admin submodule, create a basic group (eg. Authenticated role condition), uncheck the "Show Global Blocks" and re-check it.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes