Copy and Cut option of the context menu is not working via keyboard in chrome://bookmarks

chrome/browser/resources/bookmark_manager/js/main.js

Index: chrome/browser/resources/bookmark_manager/js/main.js
diff --git a/chrome/browser/resources/bookmark_manager/js/main.js b/chrome/browser/resources/bookmark_manager/js/main.js
index 626994851e710e66b40ffaaa26332354a4fd98df..c48bb1307b2782bc8e61b45a7aa7430d10dbd6c9 100644
--- a/chrome/browser/resources/bookmark_manager/js/main.js
+++ b/chrome/browser/resources/bookmark_manager/js/main.js
@@ -1259,7 +1259,7 @@ function getFilteredSelectedBookmarkIds(opt_target) {
  */
 function handleCommand(e) {
   var command = e.command;
-  var target;
+  var target = assertInstanceof(e.target, HTMLElement);
   switch (command.id) {
     case 'import-menu-command':
       recordUserAction('Import');
@@ -1288,27 +1288,24 @@ function handleCommand(e) {
     case 'open-in-new-tab-command':
     case 'open-in-background-tab-command':
       recordUserAction('OpenInNewTab');
-      openBookmarks(LinkKind.BACKGROUND_TAB,
-          assertInstanceof(e.target, HTMLElement));
+      openBookmarks(LinkKind.BACKGROUND_TAB, target);
       break;
 
     case 'open-in-new-window-command':
       recordUserAction('OpenInNewWindow');
-      openBookmarks(LinkKind.WINDOW,
-          assertInstanceof(e.target, HTMLElement));
+      openBookmarks(LinkKind.WINDOW, target);
       break;
 
     case 'open-incognito-window-command':
       recordUserAction('OpenIncognito');
-      openBookmarks(LinkKind.INCOGNITO,
-          assertInstanceof(e.target, HTMLElement));
+      openBookmarks(LinkKind.INCOGNITO, target);
       break;
 
     case 'delete-from-folders-menu-command':
       target = bmm.tree;
     case 'delete-command':
       recordUserAction('Delete');
-      deleteBookmarks(target || assertInstanceof(e.target, HTMLElement));
+      deleteBookmarks(target);
       break;
 
     case 'copy-from-folders-menu-command':
@@ -1347,12 +1344,11 @@ function handleCommand(e) {
       chrome.bookmarkManagerPrivate.sortChildren(bmm.list.parentId);
       break;
 
-    case 'rename-folder-command':
-      editItem(assertInstanceof(e.target, HTMLElement));
-      break;
 
     case 'rename-folder-from-folders-menu-command':
-      editItem(bmm.tree);
+      target = bmm.tree;
+    case 'rename-folder-command':
+      editItem(target);
       break;
 
     case 'edit-command':