Forced $CFG config checkbox, select, textarea are not disabled in gui

Textareas: 1) Visit: /admin/settings.php?section=additionalhtml and confirm the additionalhtmlfooter text box is empty and editable 2) Enter something and save it, confirm it works and it appears in the foot of the page 3) In config.php set: $CFG->additionalhtmlfooter = "second test"; 4) Confirm it is overridden and disabled Checkboxes: 1) Visit /admin/settings.php?section=courserequest 2) toggle enablecourserequests and save it and confirm that works 3) In config.php set: $CFG->enablecourserequests = 1; Single select 1) stay on same page confirm is editable 2) In config.php set and confirm it is visibly locked and disabled $CFG->defaultrequestcategory = 1; Multiple select 1) same page test courserequestnotify is editable 2) In config.php set and confirm it is locked and disabled $CFG->courserequestnotify = '$@NONE@$,$@ALL@$';   Strictly there is a large combination of things to test, selects with optgroups, multi selects with optgroups, and also all of the above in both plugin settings vs core settings.