Check both next page and items to avoid endless sequential pagination

- #492

src/clients/pagination/stream.rs

@@ -28,12 +28,18 @@ where
             let request = req(&ctx, page_size, offset);
             let page = request.await?;
             offset += page.items.len() as u32;
-            for item in page.items {
-                yield Ok(item);
+            // Occasionally, the Spotify will return an empty items with non-none next page
+            // So we have to check both conditions
+            // https://github.com/ramsayleung/rspotify/issues/492
+            if page.items.is_empty() {
+                break;
             }
             if page.next.is_none() {
                 break;
             }
+            for item in page.items {
+                yield Ok(item);
+            }
         }
     })
 }