Fixed #36710 -- Fixed a regression in urlize for multipart domain names.

Thanks Mehraz Hossain Rumman for the report and Bruno Alla for the triage.

Regression in a9fe98d5bd.

django/utils/html.py

@@ -297,6 +297,7 @@ class Urlizer:
     simple_url_re = _lazy_re_compile(r"^https?://\[?\w", re.IGNORECASE)
     simple_url_2_re = _lazy_re_compile(
         rf"^www\.|^(?!http)(?:{DomainNameValidator.hostname_re})"
+        rf"(?:{DomainNameValidator.domain_re})"
         r"\.(com|edu|gov|int|mil|net|org)($|/.*)$",
         re.IGNORECASE,
     )

tests/utils_tests/test_html.py

@@ -455,6 +455,10 @@ class TestUtilsHtml(SimpleTestCase):
                 '<a href="mailto:idna-2008@%DE%89%DE%A8%DE%80%DE%A7%DE%83%DE%AA.ex'
                 'ample.mv">idna-2008@މިހާރު.example.mv</a>',
             ),
+            (
+                "host.djangoproject.com",
+                '<a href="https://host.djangoproject.com">host.djangoproject.com</a>',
+            ),
         )
         for value, output in tests:
             with self.subTest(value=value):