feat(replace): clone properties when morphing to new element

Closes #647

lib/util/model/ModelCloneHelper.js

@@ -6,6 +6,18 @@ var forEach = require('lodash/collection/forEach'),
     contains = require('lodash/collection/contains');
 
 
+function isAllowedIn(extProp, type) {
+  var allowedIn = extProp.meta.allowedIn;
+
+  // '*' is a wildcard, which means any element is allowed to use this property
+  if (allowedIn.length === 1 && allowedIn[0] === '*') {
+    return true;
+  }
+
+  return allowedIn.indexOf(type) !== -1;
+}
+
+
 function isAllowedIn(extProp, type) {
   var allowedIn = extProp.meta.allowedIn;