fix: prevent infinite re-render loop from issue retry callbacks (#2550)

tests/utils/basic.test.ts

@@ -18,6 +18,7 @@ import {
   generateFloatApproximatelyEqualsCustomizer,
   getChildrenFromElement,
   getDurationString,
+  ignoreFunctionIdentity,
   isHoverableDevice,
   isHTMLElement,
   isSuperset,
@@ -523,6 +524,26 @@ describe('generateFloatApproximatelyEqualsCustomizer', () => {
   });
 });
 
+describe('ignoreFunctionIdentity', () => {
+  it('should treat two functions as equal regardless of identity', () => {
+    expect(
+      ignoreFunctionIdentity(
+        () => 1,
+        () => 2,
+      ),
+    ).toBe(true);
+  });
+  it('should treat a function appearing as a real change', () => {
+    expect(ignoreFunctionIdentity(() => 1, undefined)).toBe(false);
+  });
+  it('should treat a function disappearing as a real change', () => {
+    expect(ignoreFunctionIdentity(undefined, () => 1)).toBe(false);
+  });
+  it('should defer to default equality for non-functions', () => {
+    expect(ignoreFunctionIdentity(1, 2)).toBeUndefined();
+  });
+});
+
 describe('convertHTTPAdressToWebsocket', () => {
   it('should convert http to ws', () => {
     expect(convertHTTPAdressToWebsocket('http://example.com')).toBe('ws://example.com');