Fix first scroll not being processed.

src/main/kotlin/helpers/ElasticSearchWrapper.kt

@@ -112,11 +112,6 @@ class ElasticSearchWrapper(
             var searchHits = searchResponse.hits.hits
 
             while (searchHits != null && searchHits.isNotEmpty()) {
-                val scrollRequest = SearchScrollRequest(scrollId)
-                scrollRequest.scroll(scroll)
-                searchResponse = client.scroll(scrollRequest, RequestOptions.DEFAULT)
-                scrollId = searchResponse.scrollId
-                searchHits = searchResponse.hits.hits
                 for (hit in searchHits) {
                     val source = hit.sourceAsString
                     try {
@@ -131,6 +126,11 @@ class ElasticSearchWrapper(
                         log.error("Unable to parse $source from index $documentsIndex.")
                     }
                 }
+                val scrollRequest = SearchScrollRequest(scrollId)
+                scrollRequest.scroll(scroll)
+                searchResponse = client.scroll(scrollRequest, RequestOptions.DEFAULT)
+                scrollId = searchResponse.scrollId
+                searchHits = searchResponse.hits.hits
             }
             val clearScrollRequest = ClearScrollRequest()
             clearScrollRequest.addScrollId(scrollId)