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--- a/src/rcldb/expansiondbs.cpp
+++ b/src/rcldb/expansiondbs.cpp
@@ -44,6 +44,15 @@
     Chrono cron;
 
     // Erase and recreate all the expansion groups
+
+    // If langs is empty and we don't need casediac expansion, then no need to
+    // walk the big list
+    if (langs.empty()) {
+#ifndef RCL_INDEX_STRIPCHARS
+	if (o_index_stripchars)
+#endif	    
+	    return true;
+    }
 
     // Stem dbs
     vector<XapWritableComputableSynFamMember> stemdbs;