--- a/docs/HISTORY.txt	Mon Mar 11 14:05:01 2019 +0100
+++ b/docs/HISTORY.txt	Mon Mar 18 12:25:35 2019 +0100
@@ -1,6 +1,11 @@
 History
 =======
 
+0.1.15.1
+--------
+ - optimization: don't execute search to build values map in single reference input widget when current value
+   is none
+
 0.1.15
 ------
  - use object factory in annotation adapter