Merge branch 'MDL-74358_400' of https://github.com/stronk7/moodle into MOODLE_400_STABLE

2022-06-20 14:36:05 +08:00
parent f02b730069 feb621d4de
commit 4cd34267b6
1 changed files with 1 additions and 1 deletions
@@ -684,7 +684,7 @@ class tree extends tree_node {
            } else {
                unset($this->children[$index]);
                unset($this->showchildren[$index]);
-                $this->showchildren = array_values($this->showchildren);
+                $this->showchildren = !is_null($this->showchildren) ? array_values($this->showchildren) : null;
                $changed = true;
            }
        }