Merge branch 'MDL-84745-500' of https://github.com/paulholden/moodle into MOODLE_500_STABLE

cohort/index.php

@@ -117,9 +117,13 @@ if (!empty($searchquery)) {
 // Show the report.
 echo $report->output();
 
-// Show the delete selected button if there are records.
-if ($DB->record_exists('cohort', [])) {
+// Show the delete selected button if there are records and user can manage cohorts in current context.
+$canmanagecohorts = has_capability('moodle/cohort:manage', $context);
+if ($showall) {
+    $canmanagecohorts = $canmanagecohorts || core_course_category::has_capability_on_any('moodle/cohort:manage');
+}
 
+if ($canmanagecohorts && $DB->record_exists('cohort', [])) {
     echo $OUTPUT->render(new single_button(
         new moodle_url('#'),
         get_string('deleteselected'),