add failing test

src/execution/__tests__/defer-test.ts

@@ -566,6 +566,62 @@ describe('Execute: defer directive', () => {
     ]);
   });
 
+  it('Separately emits defer fragments with different labels with varying subfields with superimposed masked defer', async () => {
+    const document = parse(`
+      query HeroNameQuery {
+        ... @defer(label: "DeferID") {
+          hero {
+            id
+            friends { name }
+            ... @defer {
+              friends { name }
+            }
+          }
+        }
+        ... @defer(label: "DeferName") {
+          hero {
+            name
+          }
+        }
+      }
+    `);
+    const result = await complete(document);
+    expectJSON(result).toDeepEqual([
+      {
+        data: {},
+        pending: [
+          { id: '0', path: [], label: 'DeferID' },
+          { id: '1', path: [], label: 'DeferName' },
+        ],
+        hasNext: true,
+      },
+      {
+        pending: [{ id: '2', path: ['hero'] }],
+        incremental: [
+          {
+            data: { hero: {} },
+            id: '0',
+          },
+          {
+            data: {
+              id: '1',
+              friends: [{ name: 'Han' }, { name: 'Leia' }, { name: 'C-3PO' }],
+            },
+            id: '0',
+            subPath: ['hero'],
+          },
+          {
+            data: { name: 'Luke' },
+            id: '1',
+            subPath: ['hero'],
+          },
+        ],
+        completed: [{ id: '0' }, { id: '1' }],
+        hasNext: false,
+      },
+    ]);
+  });
+
   it('Separately emits defer fragments with different labels with varying subfields that return promises', async () => {
     const document = parse(`
       query HeroNameQuery {