SOLR-17396: fix CHANGES.txt

Author: dsmiley

solr/CHANGES.txt

@@ -23,7 +23,7 @@ Improvements
 
 Optimizations
 ---------------------
-* SOLR-17396: Reduce thread contention in ZkStateReader.getCollectionProperties(). (Aparna Suresh, David Smiley, Paul McArthur)
+(No changes)
 
 Bug Fixes
 ---------------------
@@ -118,6 +118,8 @@ Optimizations
 * SOLR-17102: The VersionBucket indexing lock mechanism was replaced with something just as fast yet
   that which consumes almost no memory, saving 1MB of memory per SolrCore.  (David Smiley)
 
+* SOLR-17396: Reduce thread contention in ZkStateReader.getCollectionProperties(). (Aparna Suresh, David Smiley, Paul McArthur)
+
 Bug Fixes
 ---------------------
 (No changes)