CLI processes cannot be executed when adminOnly mode is enabled
CLI processes that require a backend user are not executed when these backend users don't have the admin flag set and $TYPO3_CONF_VARS['BE']['adminOnly'] is enabled.
Adding the admin flag to these CLI backend users is dangerous since somebody could abuse these users.
The feature request is about adding a new state for the adminOnly configuration that allows CLI processes to bypass the adminOnly check. Thus, we have the following settings for adminOnly:
-1: Lock backend and install tool
0: Default - No lock at all
1: Only admin users can log into the backend
2: Only admin users can log into the backend, but CLI processes using regular backend users are allowed
(issue imported from #M13164)