fixed deepFreezeAndThrowOnMutationInDev

src/deprecated/platformSpecificDeprecated.android.js

   let adapted = adaptNavigationStyleToScreenStyle(params);
   adapted = adaptNavigationParams(adapted);
   adapted.overrideBackPress = params.overrideBackPress;
-  
+
   newPlatformSpecific.push(adapted);
 }
 
 
 function addNavigatorButtons(screen, sideMenuParams) {
   const Screen = Navigation.getRegisteredScreen(screen.screen);
-  Object.assign(screen, Screen.navigatorButtons);
+  screen.navigatorButtons = _.cloneDeep(Screen.navigatorButtons);
 
   // Get image uri from image id
   const rightButtons = getRightButtons(screen);

src/deprecated/platformSpecificDeprecated.ios.js

   }
 
   let navigatorEventID = screenInstanceID + '_events';
-  let navigatorButtons = JSON.parse(JSON.stringify(screenClass.navigatorButtons));
+  let navigatorButtons = _.cloneDeep(screenClass.navigatorButtons);
   if (params.navigatorButtons) {
-    navigatorButtons = JSON.parse(JSON.stringify(params.navigatorButtons));
+    navigatorButtons = _.cloneDeep(params.navigatorButtons);
   }
   if (navigatorButtons.leftButtons) {
     for (let i = 0; i < navigatorButtons.leftButtons.length; i++) {
 
   Controllers.NavigationControllerIOS(navigator.navigatorID).push({
     title: params.title,
-    subtitle:params.subtitle,
+    subtitle: params.subtitle,
     titleImage: params.titleImage,
     component: params.screen,
     animated: params.animated,