lindquist@32: module bug6;
lindquist@32: class wrong { }
lindquist@32: void bark(ref wrong s) { s = new wrong; }
lindquist@32: void foo(wrong tree) {
lindquist@32:     auto old = tree;
lindquist@32:     bark(tree);
lindquist@32:     assert(old !is tree);
lindquist@32: }
lindquist@32: void main()
lindquist@32: {
lindquist@32:     auto w = new wrong;
lindquist@32:     auto old = w;
lindquist@32:     foo(w);
lindquist@32:     assert(w is old);
lindquist@32: }