diff --git a/esm/vs/editor/browser/widget/diffEditor/utils/editorGutter.js b/esm/vs/editor/browser/widget/diffEditor/utils/editorGutter.js
index cbe9bb8e8bb97ca69e1026d2335857ec7ae32a16..86c4f393b76a4d433be297833188058c99a168e8 100644
--- a/esm/vs/editor/browser/widget/diffEditor/utils/editorGutter.js
+++ b/esm/vs/editor/browser/widget/diffEditor/utils/editorGutter.js
@@ -27,6 +27,15 @@ class EditorGutter extends Disposable {
         this.editorOnDidContentSizeChange = observableSignalFromEvent('onDidContentSizeChange', this._editor.onDidContentSizeChange);
         this.domNodeSizeChanged = observableSignal('domNodeSizeChanged');
         this.views = new Map();
+        // Orca patch (backport of monaco-editor 0.56.0): dispose the views still on screen, or each
+        // view's toolbar menu stays registered on the global MenuRegistry and retains the whole editor.
+        this._register(toDisposable(() => {
+            for (const view of this.views.values()) {
+                view.gutterItemView.dispose();
+                view.domNode.remove();
+            }
+            this.views.clear();
+        }));
         this._domNode.className = 'gutter monaco-editor';
         const scrollDecoration = this._domNode.appendChild(h('div.scroll-decoration', { role: 'presentation', ariaHidden: 'true', style: { width: '100%' } })
             .root);