Fix memory leak (#3001)

maskaravivek · ashishkumar468 · commit 7dd42c31083d · 2019-06-10T00:36:48.000+05:30
diff --git a/app/src/main/java/fr/free/nrw/commons/upload/UploadActivity.java b/app/src/main/java/fr/free/nrw/commons/upload/UploadActivity.java
@@ -455,5 +455,7 @@ protected void onDestroy() {
         super.onDestroy();
         presenter.onDetachView();
         compositeDisposable.clear();
+        mediaLicenseFragment.setCallback(null);
+        uploadCategoriesFragment.setCallback(null);
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -455,5 +455,7 @@ protected void onDestroy() {`
`455`	`455`	`super.onDestroy();`
`456`	`456`	`presenter.onDetachView();`
`457`	`457`	`compositeDisposable.clear();`
	`458`	`+ mediaLicenseFragment.setCallback(null);`
	`459`	`+ uploadCategoriesFragment.setCallback(null);`
`458`	`460`	`}`
`459`	`461`	`}`