chore: sync with main

core/src/components/radio/radio.tsx

@@ -200,7 +200,11 @@ export class Radio implements ComponentInterface {
   };
 
   private onClick = () => {
-    const { radioGroup, checked } = this;
+    const { radioGroup, checked, disabled } = this;
+
+    if (disabled) {
+      return;
+    }
 
     /**
      * The legacy control uses a native input inside

core/src/components/radio/test/radio.spec.ts

@@ -31,3 +31,27 @@ describe('ion-radio', () => {
     expect(radio.classList.contains('radio-checked')).toBe(true);
   });
 });
+
+describe('ion-radio: disabled', () => {
+  it('clicking disabled radio should not set checked state', async () => {
+    const page = await newSpecPage({
+      components: [Radio, RadioGroup],
+      html: `
+        <ion-radio-group>
+          <ion-radio disabled="true" value="a">Radio</ion-radio>
+        </ion-radio-group>
+      `,
+    });
+
+    const radio = page.body.querySelector('ion-radio');
+    const radioGroup = page.body.querySelector('ion-radio-group');
+
+    expect(radioGroup.value).toBe(undefined);
+
+    radio.click();
+
+    await page.waitForChanges();
+
+    expect(radioGroup.value).toBe(undefined);
+  });
+});