update

7 years ago · d3f5c544d0
1 changed files with 1 additions and 1 deletions
--- a/dist/fix/fix.js
+++ b/dist/fix/fix.js
@ -1226,7 +1226,7 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
            if (model instanceof Observer || model instanceof Model) {
                model = model.model;
            }
-            if (model.__ob__) {
+            if (model && model.__ob__) {
                this.$$model = model;
            } else {
                this.options = model || {};