Index: DisjunctionSumScorer.java
===================================================================
--- DisjunctionSumScorer.java	(revision 389860)
+++ DisjunctionSumScorer.java	(working copy)
@@ -207,7 +207,7 @@
       return false;
     }
     if (target <= currentDoc) {
-      target = currentDoc + 1;
+      return true;
     }
     do {
       Scorer top = (Scorer) scorerQueue.top();