--- lib.php     2019-09-19 18:02:27.995315124 +1000
+++ lib.php.original    2019-09-19 17:57:53.252077074 +1000
@@ -305,7 +305,7 @@
 function wiki_print_recent_activity($course, $viewfullnames, $timestart) {
     global $CFG, $DB, $OUTPUT;

-    $sql = "SELECT p.id, p.timemodified, p.subwikiid, p.title, sw.wikiid, w.wikimode, sw.userid, sw.groupid
+    $sql = "SELECT p.id, p.timemodified, p.subwikiid, sw.wikiid, w.wikimode, sw.userid, sw.groupid
             FROM {wiki_pages} p
                 JOIN {wiki_subwikis} sw ON sw.id = p.subwikiid
                 JOIN {wiki} w ON w.id = sw.wikiid
@@ -323,9 +323,9 @@
     $subwikivisible = array();
     foreach ($pages as $page) {
         if (!isset($subwikivisible[$page->subwikiid])) {
-            $subwiki = (object)array('id' => $page->subwikiid, 'title' => $page->title, 'wikiid' => $page->wikiid,
+            $subwiki = (object)array('id' => $page->subwikiid, 'wikiid' => $page->wikiid,
                 'groupid' => $page->groupid, 'userid' => $page->userid);
-            $wiki = (object)array('id' => $page->wikiid, 'title' => $page->title, 'course' => $course->id, 'wikimode' => $page->wikimode);
+            $wiki = (object)array('id' => $page->wikiid, 'course' => $course->id, 'wikimode' => $page->wikimode);
             $subwikivisible[$page->subwikiid] = wiki_user_can_view($subwiki, $wiki);
         }
         if ($subwikivisible[$page->subwikiid]) {
@@ -342,7 +342,7 @@
     foreach ($wikis as $wiki) {
         $cm = $modinfo->instances['wiki'][$wiki->wikiid];
         $link = $CFG->wwwroot . '/mod/wiki/view.php?pageid=' . $wiki->id;
-        print_recent_activity_note($wiki->timemodified, $wiki, $cm->name . " / " . $wiki->title, $link, false, $viewfullnames);
+        print_recent_activity_note($wiki->timemodified, $wiki, $cm->name, $link, false, $viewfullnames);
     }

     return true; //  True if anything was printed, otherwise false