Ticket #11965: patch_v1.diff

django/contrib/admin/templatetags/admin_list.py

@@ -158 +158 @@
                     else:
                         value = attr
                 allow_tags = getattr(attr, 'allow_tags', False)
-                boolean = getattr(attr, 'boolean', False)
+                boolean = getattr(attr, 'boolean', type(value) == bool)
                 if boolean:
                     allow_tags = True
                     result_repr = _boolean_icon(value)