MDL-47555 core_availability: Issue with page layout & grade restriction

* Set pagelayout before getting section info, otherwise conditional activity renderers will default to the default 'base' layout.

course/view.php

@@ -94,6 +94,9 @@
 
     require_once($CFG->dirroot.'/calendar/lib.php');    /// This is after login because it needs $USER
 
+    // Must set layout before gettting section info. See MDL-47555.
+    $PAGE->set_pagelayout('course');
+
     if ($section and $section > 0) {
 
         // Get section details and check it exists.
@@ -112,7 +115,6 @@
     // Fix course format if it is no longer installed
     $course->format = course_get_format($course)->get_format();
 
-    $PAGE->set_pagelayout('course');
     $PAGE->set_pagetype('course-view-' . $course->format);
     $PAGE->set_other_editing_capability('moodle/course:update');
     $PAGE->set_other_editing_capability('moodle/course:manageactivities');