Merge branch 'MDL-83673-main' of https://github.com/ferranrecio/moodle

course/format/amd/src/local/content.js

@@ -23,7 +23,7 @@
  */
 
 import {BaseComponent} from 'core/reactive';
-import {debounce} from 'core/utils';
+import {throttle, debounce} from 'core/utils';
 import {getCurrentCourseEditor} from 'core_courseformat/courseeditor';
 import Config from 'core/config';
 import inplaceeditable from 'core/inplace_editable';
@@ -151,7 +151,7 @@ export default class Component extends BaseComponent {
         this.addEventListener(
             document,
             "scroll",
-            this._scrollHandler
+            throttle(this._scrollHandler.bind(this), 50)
         );
     }
 

course/format/amd/src/local/courseeditor/mutations.js

@@ -579,9 +579,12 @@ export default class {
                 return;
             }
         }
+        const course = stateManager.get('course');
+        if (course.pageItem && course.pageItem.type === type && course.pageItem.id === id) {
+            return;
+        }
         stateManager.setReadOnly(false);
         // Remove the current page item.
-        const course = stateManager.get('course');
         course.pageItem = null;
         // Save the new page item.
         if (newPageItem) {