Recycle only views created by RN

Summary: This diff ensure that only views created by RN are taken into consideration for recycling.

Reviewed By: fkgozali

Differential Revision: D14874678

fbshipit-source-id: ea7dd5a0f29f6acf0dce8573fc77b012395476bd

Author: mdvacca

ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/MountingManager.java

@@ -94,8 +94,11 @@ private void dropView(View view) {
 
     mTagToViewState.remove(reactTag);
     Context context = view.getContext();
-    mViewFactory.recycle(
-        (ThemedReactContext) context, Assertions.assertNotNull(viewManager).getName(), view);
+    if (context instanceof ThemedReactContext) {
+      // We only recycle views that were created by RN (its context is instance of ThemedReactContext)
+      mViewFactory.recycle(
+          (ThemedReactContext) context, Assertions.assertNotNull(viewManager).getName(), view);
+    }
   }
 
   /** Releases all references to react root tag. */