diff -r 6448c284fe21 -r dad881565d0a javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java
--- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Mon Apr 08 16:51:30 2013 +0200
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Mon Apr 08 18:26:11 2013 +0200
@@ -1136,8 +1136,10 @@
                     w.write("    ret.prop_" + p.name() + " = prop_" + p.name() + ";\n");
                     continue;
                 }
+                w.write("    ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
+            } else {
+                w.write("    ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
             }
-            w.write("    ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
         }
         
         w.write("    return ret;\n");