1 files changed, 20 insertions, 0 deletions
diff --git a/tests/admin_changelist/tests.py b/tests/admin_changelist/tests.py
index 128fbb6aac..bab988af23 100644
--- a/tests/admin_changelist/tests.py
+++ b/tests/admin_changelist/tests.py
@@ -1910,3 +1910,23 @@ class SeleniumTests(AdminSeleniumTestCase):
                 "[data-filter-title='number of members']",
             ).get_attribute("open")
         )
+
+    def test_collapse_filter_with_unescaped_title(self):
+        from selenium.webdriver.common.by import By
+
+        self.admin_login(username="super", password="secret")
+        changelist_url = reverse("admin:admin_changelist_proxyuser_changelist")
+        self.selenium.get(self.live_server_url + changelist_url)
+        # Title is escaped.
+        filter_title = self.selenium.find_element(
+            By.CSS_SELECTOR, "[data-filter-title='It\\'s OK']"
+        )
+        filter_title.find_element(By.CSS_SELECTOR, "summary").click()
+        self.assertFalse(filter_title.get_attribute("open"))
+        # Filter is in the same state after refresh.
+        self.selenium.refresh()
+        self.assertFalse(
+            self.selenium.find_element(
+                By.CSS_SELECTOR, "[data-filter-title='It\\'s OK']"
+            ).get_attribute("open")
+        )