Add missing issue to changelog.

git-svn-id: https://svn.redmine.org/redmine/trunk@21674 e93f8b46-1217-0410-a6f0-8f06a7374b81

doc/CHANGELOG

@@ -39,6 +39,7 @@ https://www.redmine.org/
 * Defect #37255: Information Leak in QueryAssociationColumn/QueryAssociationCustomFieldColumn
 * Defect #37256: Medium severity XSS security vulnerabilities (3x) in jQuery UI v1.12.1
 # Defect #37136: Remote code execution vulnerability in commonmarker
+# Defect #37171: Ability to change the issue category or issue target version with nonexistent value for the specific project
 
 === [Text formatting]