add issue as reference

Author: erikpetzold

pom.xml

@@ -55,7 +55,7 @@
         <!-- plugin versions -->
         <build-helper-maven-plugin.version>3.3.0</build-helper-maven-plugin.version>
         <maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>
-        <versions-maven-plugin.version>2.13.0</versions-maven-plugin.version>
+        <versions-maven-plugin.version>2.13.0</versions-maven-plugin.version> <!-- because of https://github.com/mojohaus/versions/issues/855 -->
         <maven-clean-plugin.version>3.2.0</maven-clean-plugin.version>
         <maven-site-plugin.version>3.12.1</maven-site-plugin.version>
         <maven-dependency-plugin.version>3.3.0</maven-dependency-plugin.version>