TYPO3 Core

1) create a user, give him the rights to edit page content. Add this to the TS:
admPanel {
enable.edit = 1
module.edit.forceDisplayFieldIcons = 1
hide = 1
}
The use can now edit pages in the backend and in the frontend.
2) Enable 'Edit in Frontend Only' for the user. The user now gets "This user is not allowed access to the backend." as soon as he logs in.
The same configuration works fine with 3.5.0

(issue imported from #M45)