[iOS] subsequent window.fetch calls giving error Unable to resolve data for blob: (null) with RN 0.59.6

[gitpayal]

• rn-fetch-blob: 0.10.15
  react-native: 0.59.6
  react: 16.6.3

Sample Code:
I am uploading file to firebase using this code

const Blob = RNFetchBlob.polyfill.Blob;
const fs = RNFetchBlob.fs
const originalXMLHttpRequest = window.XMLHttpRequest;
const originalBlob = window.Blob;

After doing my successful upload with rn-fetch-blob library on firebase, I assign back default value to window.Blob and window.XMLHttpRequest.

  window.XMLHttpRequest = originalXMLHttpRequest
   window.Blob = originalBlob;

This part was working perfectly fine before react-native update.

After update react-native (v0.57.8 to v0.59.6) , when I use window.fetch after upload , it is giving me error "Unable to resolve data for blob: (null)"

Any solution for this