Codacy: Error-prone Code

Member variable 'legacy_menu_item::default_' is not assigned a value in 'legacy_menu_item::operator='.

`default_` loooked fine, but `contained_markup_` was missing.

src/gui/auxiliary/old_markup.hpp

@@ -73,6 +73,7 @@ class legacy_menu_item
 			label_ = rhs.label_;
 			desc_ = rhs.desc_;
 			default_ = rhs.default_;
+			contained_markup_ = rhs.contained_markup_;
 		}
 		return *this;
 	}