Fixed microsoft#816

Author: max-mironov

package-mixins.js

@@ -26,7 +26,11 @@ module.exports = (NativeCodePush) => {
         // Use the downloaded package info. Native code will save the package info
         // so that the client knows what the current package version is.
         try {
-          const downloadedPackage = await NativeCodePush.downloadUpdate(this, !!downloadProgressCallback);
+          const updatePackageCopy = Object.assign({}, this);
+          Object.keys(updatePackageCopy).forEach((key) => (typeof updatePackageCopy[key] === 'function') && delete updatePackageCopy[key]);
+ 
+          const downloadedPackage = await NativeCodePush.downloadUpdate(updatePackageCopy, !!downloadProgressCallback);
+
           reportStatusDownload && reportStatusDownload(this);
           return { ...downloadedPackage, ...local };
         } finally {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-code-push",
-  "version": "1.17.3-beta",
+  "version": "1.17.4-beta",
   "description": "React Native plugin for the CodePush service",
   "main": "CodePush.js",
   "typings": "typings/react-native-code-push.d.ts",