fix select address can not return previous

iCemarose/Class/UI/ShopCart/KWMSelectAddressVC.m

@@ -276,7 +276,7 @@
 
 -(void)kwm_cancel{
     KWMBeforePayVC *vc = (KWMBeforePayVC *)self.delegate;
-    if (vc.address) {
+    if (![KWMValidateUtil validateAddress:vc.address]) {
         [[self navigationController] popViewControllerAnimated:YES];
     }else{
         NSArray *vcs = [[self navigationController] viewControllers];