Index: src/main/java/org/apache/jackrabbit/oak/plugins/segment/SegmentTracker.java
===================================================================
--- src/main/java/org/apache/jackrabbit/oak/plugins/segment/SegmentTracker.java	(revision 1713474)
+++ src/main/java/org/apache/jackrabbit/oak/plugins/segment/SegmentTracker.java	(working copy)
@@ -188,6 +188,7 @@
         if (stringCache != null) {
             stringCache.clear();
         }
+        writer.dropCache();
     }
 
     /**