fix: add group when cutting workspace comments (#9680)

* fix: add group when cutting workspace comments

* Update shortcut_items.ts

* added check for group to the cut workspace comment unit test

Author: lizschwab

packages/blockly/core/shortcut_items.ts

@@ -217,7 +217,9 @@ export function registerCut() {
       if (focused instanceof BlockSvg) {
         focused.checkAndDelete();
       } else if (isIDeletable(focused)) {
+        eventUtils.setGroup(true);
         focused.dispose();
+        eventUtils.setGroup(false);
       }
       return !!copyData;
     },

packages/blockly/tests/mocha/shortcut_items_test.js

@@ -295,6 +295,11 @@ suite('Keyboard Shortcut Items', function () {
       this.disposeSpy = sinon.spy(this.comment, 'dispose');
 
       this.injectionDiv.dispatchEvent(keyEvent);
+
+      const deleteEvents = this.workspace
+        .getUndoStack()
+        .filter((e) => e.type === 'comment_delete');
+      assert(deleteEvents[0].group !== ''); // Group string is not empty
       sinon.assert.calledOnce(this.copySpy);
       sinon.assert.calledOnce(this.disposeSpy);
     });