fix: do not reload multiple tabs on block save (backport #2600) (#2704)

src/course-unit/hooks.jsx

@@ -21,6 +21,7 @@ import {
   fetchCourseVerticalChildrenData,
   getCourseOutlineInfoQuery,
   patchUnitItemQuery,
+  updateCourseUnitSidebar,
 } from './data/thunk';
 import {
   getCanEdit,
@@ -221,8 +222,7 @@ export const useCourseUnit = ({ courseId, blockId }) => {
       // edits the component using editor which has a separate store
       /* istanbul ignore next */
       if (event.key === 'courseRefreshTriggerOnComponentEditSave') {
-        dispatch(fetchCourseSectionVerticalData(blockId, sequenceId));
-        dispatch(fetchCourseVerticalChildrenData(blockId, isSplitTestType));
+        dispatch(updateCourseUnitSidebar(blockId));
         localStorage.removeItem(event.key);
       }
     };

src/editors/data/redux/thunkActions/app.js

@@ -126,9 +126,9 @@ export const saveBlock = (content, returnToUnit) => (dispatch) => {
     onSuccess: (response) => {
       dispatch(actions.app.setSaveResponse(response));
       const parsedData = JSON.parse(response.config.data);
-      if (parsedData?.has_changes) {
+      if (parsedData?.has_changes || !('has_changes' in parsedData)) {
         const storageKey = 'courseRefreshTriggerOnComponentEditSave';
-        localStorage.setItem(storageKey, Date.now());
+        sessionStorage.setItem(storageKey, Date.now());
 
         window.dispatchEvent(new StorageEvent('storage', {
           key: storageKey,