Index: lucene/src/java/org/apache/lucene/index/DocumentsWriter.java
===================================================================
--- lucene/src/java/org/apache/lucene/index/DocumentsWriter.java	(revision 1196227)
+++ lucene/src/java/org/apache/lucene/index/DocumentsWriter.java	(working copy)
@@ -252,8 +252,14 @@
   }
 
   boolean anyChanges() {
-    return numDocsInRAM.get() != 0 || anyDeletions();
+    return numDocsInRAM.get() != 0 || anyDeletions() || !isFlushQueueEmpty();
   }
+  
+  private boolean isFlushQueueEmpty() {
+    synchronized(ticketQueue) {
+      return ticketQueue.isEmpty();
+    }
+  }
 
   public int getBufferedDeleteTermsSize() {
     return deleteQueue.getBufferedDeleteTermsSize();
@@ -470,8 +476,8 @@
         // Keep publishing eligible flushed segments:
         final FlushTicket head = ticketQueue.peek();
         if (head != null && head.canPublish()) {
-          ticketQueue.poll();
           finishFlush(head.segment, head.frozenDeletes);
+          ticketQueue.poll(); 
         } else {
           break;
         }