From b6e9ace597a2a07eb41b5baf213ec6b690b9ab80 Mon Sep 17 00:00:00 2001
From: Antonin Delpeuch <antonin@delpeuch.eu>
Date: Tue, 25 Sep 2018 19:37:40 +0100
Subject: [PATCH] Temporary fix for HTTP 500 errors from Wikibase. Closes #1746

---
 .../org/openrefine/wikidata/editing/EditBatchProcessor.java    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/extensions/wikidata/src/org/openrefine/wikidata/editing/EditBatchProcessor.java b/extensions/wikidata/src/org/openrefine/wikidata/editing/EditBatchProcessor.java
index b4afae964..e9822ee23 100644
--- a/extensions/wikidata/src/org/openrefine/wikidata/editing/EditBatchProcessor.java
+++ b/extensions/wikidata/src/org/openrefine/wikidata/editing/EditBatchProcessor.java
@@ -192,7 +192,8 @@ public class EditBatchProcessor {
         logger.info("Requesting documents");
         currentDocs = null;
         int retries = 3;
-        while (currentDocs == null && retries > 0) {
+        // TODO: remove currentDocs.isEmpty() once https://github.com/Wikidata/Wikidata-Toolkit/issues/402 is solved
+        while ((currentDocs == null || currentDocs.isEmpty()) && retries > 0) {
             try {
                 currentDocs = fetcher.getEntityDocuments(qidsToFetch);
             } catch (MediaWikiApiErrorException e) {