Fix comment replies cursor

app/src/main/java/awais/instagrabber/viewmodels/CommentsViewerViewModel.java

@@ -185,8 +185,9 @@ public class CommentsViewerViewModel extends ViewModel {
             list = getPrevList(replyList);
         }
         replyList.postValue(Resource.loading(list));
-        if (isLoggedIn.getValue()) {
-            commentService.fetchChildComments(postId, commentId, rootCursor, rcb);
+        final Boolean isLoggedInValue = isLoggedIn.getValue();
+        if (isLoggedInValue != null && isLoggedInValue) {
+            commentService.fetchChildComments(postId, commentId, repliesCursor, rcb);
             return;
         }
         final Call<String> request = graphQLService.fetchComments(commentId, false, repliesCursor);

app/src/main/java/awais/instagrabber/webservices/CommentService.java

@@ -79,7 +79,6 @@ public class CommentService extends BaseService {
         request.enqueue(new Callback<CommentsFetchResponse>() {
             @Override
             public void onResponse(@NonNull final Call<CommentsFetchResponse> call, @NonNull final Response<CommentsFetchResponse> response) {
-                if (callback == null) return;
                 final CommentsFetchResponse cfr = response.body();
                 if (cfr == null) callback.onFailure(new Exception("response is empty"));
                 callback.onSuccess(cfr);
@@ -102,7 +101,6 @@ public class CommentService extends BaseService {
         request.enqueue(new Callback<ChildCommentsFetchResponse>() {
             @Override
             public void onResponse(@NonNull final Call<ChildCommentsFetchResponse> call, @NonNull final Response<ChildCommentsFetchResponse> response) {
-                if (callback == null) return;
                 final ChildCommentsFetchResponse cfr = response.body();
                 if (cfr == null) callback.onFailure(new Exception("response is empty"));
                 callback.onSuccess(cfr);