Index: lucene/suggest/src/test/org/apache/lucene/search/suggest/analyzing/AnalyzingSuggesterTest.java
===================================================================
--- lucene/suggest/src/test/org/apache/lucene/search/suggest/analyzing/AnalyzingSuggesterTest.java	(revision 1405545)
+++ lucene/suggest/src/test/org/apache/lucene/search/suggest/analyzing/AnalyzingSuggesterTest.java	(working copy)
@@ -983,4 +983,17 @@
     assertEquals("b", results.get(1).key);
     assertEquals(5, results.get(1).value);
   }
+
+  public void testDupSurfaceFormsMissingResults3() throws Exception {
+    Analyzer a = new MockAnalyzer(random());
+    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.PRESERVE_SEP, 256, -1);
+    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
+          new TermFreq("a a", 7),
+          new TermFreq("a a", 7),
+          new TermFreq("a c", 6),
+          new TermFreq("a c", 3),
+          new TermFreq("a b", 5),
+        }));
+    assertEquals("[a a/7, a c/6, a b/5]", suggester.lookup("a", false, 3).toString());
+  }
 }
Index: lucene/suggest/src/java/org/apache/lucene/search/suggest/analyzing/AnalyzingSuggester.java
===================================================================
--- lucene/suggest/src/java/org/apache/lucene/search/suggest/analyzing/AnalyzingSuggester.java	(revision 1405545)
+++ lucene/suggest/src/java/org/apache/lucene/search/suggest/analyzing/AnalyzingSuggester.java	(working copy)
@@ -379,6 +379,10 @@
 
       // Sort all input/output pairs (required by FST.Builder):
       new Sort().sort(tempInput, tempSorted);
+
+      // Free disk space:
+      tempInput.delete();
+
       reader = new Sort.ByteSequencesReader(tempSorted);
      
       PairOutputs<Long,BytesRef> outputs = new PairOutputs<Long,BytesRef>(PositiveIntOutputs.getSingleton(true), ByteSequenceOutputs.getSingleton());