finally get the correct nToReturn value

if command:
    1

if batch size:
    if limit:
        min(batch_size, limit)
    else:
        batch_size

0

Author: hanumantmk

src/mongoc/mongoc-cursor.c

@@ -88,14 +88,8 @@ _mongoc_n_return (mongoc_cursor_t * cursor)
       /* calculate remaining */
       uint32_t remaining = cursor->limit - cursor->count;
 
-      /* if we had a batch size */
-      if (r) {
-         /* use min of batch or remaining */
-         r = MIN(r, (int32_t)remaining);
-      } else {
-         /* if we didn't, just use the remaining */
-         r = remaining;
-      }
+      /* use min of batch or remaining */
+      r = MIN(r, (int32_t)remaining);
    }
 
    return r;