Simplify test_issue_6691_fixed per review feedback

Check specifically for '1.2.A.c26568' in response data rather than multiple possible strings.

Co-authored-by: edgarcosta <322822+edgarcosta@users.noreply.github.com>

Author: Copilot

lmfdb/sato_tate_groups/test_st.py

@@ -120,19 +120,6 @@ def test_issue_6691_fixed(self):
         """Test that issue #6691 is fixed: labels with non-numeric component group parts don't crash"""
         # The specific URL from issue #6691 that was causing ValueError
         page = self.tc.get('/SatoTateGroup/1.2.A.c13284')
-        # Should not crash and should return some reasonable response
-        # Either a valid page or a redirect to search results
         data = page.get_data(as_text=True)
-        # Verify we get some reasonable response (not a 500 error)
-        assert ('The database currently contains' in data or 'SU(2)' in data)
-        
-        # Test a few more similar cases to ensure robustness
-        test_labels = ['1.2.A.c100', '2.2.B.d50']
-        for label in test_labels:
-            page = self.tc.get(f'/SatoTateGroup/{label}')
-            data = page.get_data(as_text=True)
-            # Should not crash - either get valid page, redirect, or search page
-            # The important thing is no ValueError exception is raised
-            assert ('The database currently contains' in data or 
-                    'SU(2)' in data or 'Sato-Tate' in data or 'Browse' in data or
-                    'Redirecting' in data)
+        # Check that the page loads correctly and shows a supergroup
+        assert '1.2.A.c26568' in data