Don't mark the translatable string 'None' as safe

gasman · gasman · commit 60b11467ad06 · 2020-04-14T02:13:44.000+01:00
diff --git a/wagtail/admin/compare.py b/wagtail/admin/compare.py
@@ -321,7 +321,7 @@ def htmldiff(self):
             if obj_a:
                 return escape(force_str(obj_a))
             else:
-                return mark_safe(_("None"))
+                return _("None")
 
 
 class ChildRelationComparison:
