Fix handling of empty corpus queries

Change-Id: Ia855430ded636287897cc00081d07b05c2fb37a8
diff --git a/Changes b/Changes
index dabde93..51adfa2 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,6 @@
-0.37 2020-10-23
+0.37 2020-11-19
     - [feature] Introduced query references in Poliqarp (diewald)
+    - [bugfix] Ignore empty corpus queries (diewald)
 
 0.36 2020-07-24
     - [security] Upgraded version of Google Guava